Provided by: tin_2.6.5~20251030-1build1_amd64 bug

NAME

       tin, rtin - related files

DESCRIPTION

       This  man page describes the various (config) files and their formats used by the tin(1) newsreader.  All
       files are expected to have unix style ('\n' aka LF) line endings.

FILES

       $MAILCAPS
       ~/.mailcap
       /etc/mailcap
       /usr/etc/mailcap
       /usr/local/etc/mailcap
       /etc/mail/mailcap

              mailcap(5) files as defined in RFC 1524.  The mailcap files are read by tin(1) to determine how to
              display non-text messages at the local site.  Any line that starts with "#" is a  comment.   Blank
              lines  are ignored. Otherwise, each line defines a single mailcap entry for a single content type.
              Long lines may be continued by ending them with a backslash character, "\".

              Each individual mailcap entry consists of a content-type specification, a command to execute,  and
              (possibly) a set of optional "flag" values.

              The  "type"  field  is  simply any valid content type name.  It is the string that will be matched
              against the ''Content-Type:'' header to decide if this is  the  mailcap  entry  that  matches  the
              current  message.   Additionally,  the type field may specify a subtype or a wildcard to match all
              subtypes.

              The "command" field is any UNIX command and is used to specify the interpreter for the given  type
              of message.  It will be passed to the shell via the system(3) facility.

              Semicolons  and  backslashes within the command or any flag field must be quoted with backslashes.
              If the field contains "%s", those two characters will be replaced by  the  name  of  a  file  that
              contains  the  body of the message.  If it contains "%t", those two characters will be replaced by
              the content-type field, including the subtype,  if  any.   If  it  contains  "%{"  followed  by  a
              parameter  name  and a closing "}", then all those characters will be replaced by the value of the
              named parameter, if any, from the ''Content-Type:'' header.  Finally, if the field contains  "\%",
              those two characters will be replaced by a single "%" character.

              Besides the type and command field the following "flags" are defined:

              compose
                     The "compose" field may be used to specify a program that can be used to compose a new body
                     or  body  part  in  the given format.  Its intended use is to support mail composing agents
                     that support the composition of multiple types of mail using external composing agents.  As
                     with the view-command, the semantics of program execution are operating  system  dependent.
                     The result of the composing program may be data that is not yet suitable for mail transport
                     — that is, a Content-Transfer-Encoding may need to be applied to the data.

              composetyped
                     The  "composetyped"  field  is  similar  to the "compose" field, but is to be used when the
                     composing program needs to specify the ''Content-Type:'' header field to be applied to  the
                     composed  data.   The  "compose"  field  is simpler, and is preferred for use with existing
                     (non-mail-oriented) programs for composing data in  a  given  format.   The  "composetyped"
                     field is necessary when the Content-Type information must include auxiliary parameters, and
                     the  composition  program  must  then know enough about mail formats to produce output that
                     includes the mail type information.

              edit   The "edit" field may be used to specify a program that can be used to edit a body  or  body
                     part  in  the given format.  In many cases, it may be identical in content to the "compose"
                     field, and shares the operating-system dependent semantics for program execution.

              print  The "print" field may be used to specify a program that can be used to print a  message  or
                     body  part  in  the  given  format.   As  with  the  view-command, the semantics of program
                     execution are operating system dependent.

              test   The "test"  field  may  be  used  to  test  some  external  condition  (e.g.,  the  machine
                     architecture,  or  the window system in use) to determine whether the mailcap line applies.
                     It specifies a program to be run to test some condition.  The semantics of execution and of
                     the value returned by the test program are operating system dependent.  If the test  fails,
                     a  subsequent  mailcap  entry  should  be sought.  Multiple test fields are not permitted —
                     since a test can call a program, it can already be arbitrarily complex.

              needsterminal
                     The "needsterminal" field indicates that the view-command must be  run  on  an  interactive
                     terminal.   This  is  needed  to  inform  window-oriented  user  agents that an interactive
                     terminal is needed.  (The decision is not left exclusively to the view-command  because  in
                     some circumstances it may not be possible for such programs to tell whether or not they are
                     on  interactive  terminals.)   The  needsterminal command should be assumed to apply to the
                     compose and edit commands, too, if they exist.  Note that this is NOT a  test  –  it  is  a
                     requirement for the environment in which the program will be executed, and should typically
                     cause  the  creation  of a terminal window when not executed on either a real terminal or a
                     terminal window.

              copiousoutput
                     The "copiousoutput" field indicates that the  output  from  the  view-command  will  be  an
                     extended  stream  of  output and is to be interpreted as advice to the UA (User Agent mail-
                     reading program) that the output should be either paged or made scroll-able.  Note that  it
                     is probably a mistake if needsterminal and copiousoutput are both specified.

              description
                     The  "description"  field  simply  provides  a textual description, optionally quoted, that
                     describes the type of data, to be used optionally by mail readers that wish to describe the
                     data before offering to display it.

              textualnewlines
                     The "textualnewlines" field, if set to any non-zero value, indicates that this type of data
                     is line-oriented and that, if encoded in  base64,  all  newlines  should  be  converted  to
                     canonical  form  (CRLF)  before  encoding,  and  will  be  in that form after decoding.  In
                     general, this field is needed only if there is line-oriented data of some type  other  than
                     text/* or non-line-oriented data that is a subtype of text.

              x11-bitmap
                     The  "x11-bitmap"  field  names  a  file,  in  X11  bitmap (xbm) format, which points to an
                     appropriate icon to be used to visually denote the presence of this kind of data.

              nametemplate
                     The "nametemplate" field gives a filename format, in which %s will be replaced by  a  short
                     unique  string  to give the name of the temporary file to be passed to the viewing command.
                     This is only expected  to  be  relevant  in  environments  where  filename  extensions  are
                     meaningful,  e.g.,  one  could  specify that a GIF file being passed to a gif viewer should
                     have a name ending in ".gif" by using "nametemplate=%s.gif".

              tin(1)  currently  only  respects  the  "test",  "description",  "nametemplate"  and  partly   the
              "needsterminal"  flags, all other flags are internally ignored.  It also can't handle the "%F" and
              "%n" expansions yet.

              Example:
                     # mailcap file example
                     image/*;\
                        xv -8 -geometry +0 '%s';\
                        description=%{name} %t-Image;\
                        test=test "$DISPLAY" != "";\
                        nametemplate=%s.IMAGE

                     message/rfc822;\
                        ${PAGER:-"more"} '%s';\
                        edit=${EDITOR:-"vi"} '%s';\
                        compose=${EDITOR:-"vi"} '%s';\
                        print=a2ps '%s';\
                        needsterminal

       /etc/news/server

              default NNTP-server to read news from if  not  reading  from  the  local  spool.   ''-g  server'',
              $NNTPSERVER  have  higher  priority  (in that order), the default server given at compile time has
              lower priority.

       ${TIN_HOMEDIR:-"$HOME"}/.cancelsecret

              secret to be used for cancel-locks (RFC 8315) if tin(1) is built with support  for  it.  An  empty
              secret  file  disables the cancel-lock creation in that case. This file should be readable only by
              the user.

       ${TIN_HOMEDIR:-"$HOME"}/.mime.types
       /etc/mime.types
       /etc/tin/mime.types

              mime type / filename extension pairs

       ${TIN_HOMEDIR:-"$HOME"}/.newsauth

              "nntpserver[:port] password [user]" pairs for NNTP servers  that  require  authorization.  If  the
              password contains a space or a tab it must be enclosed in double quotes ("). Usernames must not be
              enclosed  in double quotes and thus can't contain spaces or tabs. Any line that starts with "#" is
              a comment. Blank lines are ignored. This file should be readable only for the user as it  contains
              the user's unencrypted password for reading news!

              nntpserver
                     full  qualified  domain  name  of the news server. Additionally, a port can be specified by
                     appending :portnumber.

              password
                     user's unencrypted password for reading news.

              user   username on the news server if it differs from the local login. This field is optional.

              Example:
                     # sample .newsauth file
                     news.example.org  secret
                     news.example.net  arcane  guest
                     news.example.com  "top secret"  james.bond@example.com

       ${TIN_HOMEDIR:-"$HOME"}/.newsrc

              "newsgroupflag [article[,article | -article]...]"  lines.

              newsgroup
                     the name of the newsgroup.

              flag   a flag indicating if the group is subscribed ':' or not '!'.

              article
                     range of already read articles from that group; numbers separated by commas with sequential
                     numbers collapsed with hyphens. Empty lines and lines which start with "#" are ignored  and
                     not written back.

              Example:
                     # sample .newsrc file
                     news.software.b! 1–666,669
                     news.software.nntp: 1–13245,13247,13249
                     news.software.readers: 1–19567,19571–19597

       ${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/.oldnewsrc

              backup of ${TIN_HOMEDIR:-"$HOME"}/.newsrc

       ${TIN_HOMEDIR:-"$HOME"}/.signature
       ${TIN_HOMEDIR:-"$HOME"}/.Sig

              signature

       ${TIN_HOMEDIR:-"$HOME"}/.sigfixed

              fixed part of a randomly generated signature, this will be added first

       ${TIN_HOMEDIR:-"$HOME"}/.tin/.inputhistory

              history of last used strings

       ${TIN_INDEX_MAILDIR:-"${TIN_HOMEDIR:-"$HOME"}/.tin"}/.mail/

              mailgroups index files

       ${TIN_INDEX_NEWSDIR:-"${TIN_HOMEDIR:-"$HOME"}/.tin"}/.news${NNTPSERVER:+"-$NNTPSERVER"}/

              newsgroups index files

       ${TIN_INDEX_SAVEDIR:-"${TIN_HOMEDIR:-"$HOME"}/.tin"}/.save/

              saved newsgroups index files

       ${TIN_HOMEDIR:-"$HOME"}/.tin/active.mail

              active  file  ("mailgroupname maxnum minnum mailspool" quadruples separated by spaces not tabs) of
              user's mailgroups (requires tin(1) to be built with mh-mail-handling support).

              mailgroupname
                     must be the pathname of the mailbox relative to field #4 with '/' changed to '.'

              maxnum just put a large number here, something higher than the highest message in the mailbox

              minnum put 0 here

              mailspool
                     path of mail spool directory. This must be the full pathname to the root of the mail folder
                     area.

              Example:
                     Mail.inbox 12345 00000 /home/foo
                     Mail.outbox 23456 00000 /home/foo

              This allows access to the 'inbox' and 'outbox'  folders  of  user  foo.   They  are  accessed  via
              /home/foo/Mail/inbox and /home/foo/Mail/outbox

       ${TIN_HOMEDIR:-"$HOME"}/.tin/active.save

              active file of user's saved newsgroups, used by tin -R.

       /etc/tin/attributes
       ${TIN_HOMEDIR:-"$HOME"}/.tin/attributes

              The   group   attributes   files   may   be   used   to   override   some   global  settings  from
              ${TIN_HOMEDIR:-"$HOME"}/.tin/tinrc on a per group basis. Order is important as last match  counts;
              this allows one to refine attributes for narrowed scopes. Note that the scope=<grouplist> line has
              to  be  specified before the attributes are specified for that list and each attribute can only be
              set once per scope section. All attributes are set to a reasonable default so  you  only  have  to
              specify the attribute that you want to change. All toggle attributes are set by specifying ON/OFF.
              Otherwise,  they  function exactly as their global equivalents. The following group attributes are
              available:

              scope  This changes the list of groups to which the attributes that follow will  be  applied.  See
                     the section NEWSGROUP LISTS & WILDCARDS in tin(1) for the types of pattern that can be used
                     here.

              add_posted_to_filter
                     Identical to the tinrc variable of the same name

              advertising
                     Identical to the tinrc variable of the same name

              alternative_handling
                     Identical to the tinrc variable of the same name

              ask_for_metamail
                     Identical to the tinrc variable of the same name

              auto_cc_bcc
                     Identical to the tinrc variable of the same name

              auto_list_thread
                     Identical to the tinrc variable of the same name

              auto_select
                     Automatically perform the GroupMarkUnselArtRead ('X') command after entering the group.

              batch_save
                     Can  be  used  to  override  the  global  setting  in  tinrc on a per group basis. For more
                     information read section AUTOMATIC MAILING AND SAVING NEW NEWS in tin(1).

              date_format
                     Identical to the tinrc variable of the same name

              delete_tmp_files
                     If this is set to ON, then saved article  files  that  have  been  post-processed  will  be
                     automatically  deleted,  otherwise  the  user  will  be  asked  whether to delete the post-
                     processed files. Automatic processing of marked articles  using  GroupAutoSave  ('S')  will
                     suppress prompting.

              editor_format
                     Identical to the tinrc variable of the same name

              extquote_handling
                     Identical to the tinrc variable of the same name

              fcc    Mailbox  to  save  sent  mails.  The  format  of  the  mailbox  is controlled via the tinrc
                     mailbox_format variable.

              followup_to
                     Set ''Followup-To:'' header to the specified group(s).

              from   Identical to the tinrc variable mail_address

              group_catchup_on_exit
                     Identical to the tinrc variable of the same name

              group_format
                     Identical to the tinrc variable of the same name

              hide_inline_data
                     Identical to the tinrc variable of the same name

              mail_8bit_header
                     Identical to the tinrc variable of the same name

              mail_mime_encoding
                     Identical to the tinrc variable of the same name

              maildir
                     Identical to the tinrc variable of the same name

              mailing_list
                     Used when a group is a mailing list. All responses to the group will be  directed  to  this
                     email address instead

              mark_ignore_tags
                     Identical to the tinrc variable of the same name

              mark_saved_read
                     Identical to the tinrc variable of the same name

              mime_forward
                     Determines  whether usenet articles are forwarded as attachment or inline. When set to OFF,
                     the forwarded article will be included in the body of the mail, while setting this variable
                     to ON will cause the article to be attached as a separate MIME part. Enabling  mime_forward
                     is  particularly  useful  for  articles  consisting of multiple MIME parts such as PGP/MIME
                     signed messages or being encoded in a different character set than your local  one.  It  is
                     also  useful  if  the  receiver  should  be able to operate on the entire forwarded article
                     (i.e., view or save it without your comments). On the other hand, if you  want  to  forward
                     only some parts of the article or to insert 'inline' annotations, you might want to disable
                     this option.  Currently mime_forward is forced if the article to be attached is a multipart
                     MIME  article,  this  may  change in a future version.  Please note that for this option to
                     have effect, the tinrc variable interactive_mailer has  to  be  set  to  0  (which  is  the
                     default).

              mime_types_to_save
                     A  comma separated list of MIME major/minor Content-Types that will be saved when using the
                     view/save and save/autosave features.  A single * can be used to wildcard the major  and/or
                     minor   type   and   a  !  as  the  first  character  in  an  entry  will  negate  it,  eg:
                     image/*,!image/bmp,!text/html. Default is */*

              news_headers_to_display
                     Identical to the tinrc variable of the same name

              news_headers_to_not_display
                     Identical to the tinrc variable of the same name

              news_quote_format
                     Identical to the tinrc variable of the same name

              organization
                     This can be used to set the  article  header  field  ''Organization:''.  It  overrides  the
                     setting (if any) of organization in /etc/tin/tin.defaults and $ORGANIZATION (or $NEWSORG on
                     Apollo  DomainOS).  If  it  points  to a readable file a random line from that file will be
                     used. Note that some news servers might still overwrite the ''Organization:'' header.

              pos_first_unread
                     Identical to the tinrc variable of the same name

              post_8bit_header
                     Identical to the tinrc variable of the same name

              post_mime_encoding
                     Identical to the tinrc variable of the same name

              post_process_type
                     Identical to the tinrc variable of the same name

              post_process_view
                     Identical to the tinrc variable of the same name

              print_header
                     Identical to the tinrc variable of the same name

              process_only_unread
                     Identical to the tinrc variable of the same name

              prompt_followupto
                     Identical to the tinrc variable of the same name

              quote_chars
                     Identical to the tinrc variable of the same name

              savedir
                     Identical to the tinrc variable of the same name

              savefile

              show_art_score
                     Identical to the tinrc variable of the same name

              show_author
                     Identical to the tinrc variable of the same name

              show_only_unread_arts
                     Identical to the tinrc variable of the same name

              show_signatures
                     Identical to the tinrc variable of the same name

              sigdashes
                     Identical to the tinrc variable of the same name

              sigfile
                     Identical to the tinrc variable of the same name

              signature_repost
                     Identical to the tinrc variable of the same name

              sort_article_type
                     Identical to the tinrc variable of the same name

              sort_threads_type
                     Identical to the tinrc variable of the same name

              tex2iso_conv
                     Identical to the tinrc variable of the same name

              thread_articles
                     Identical to the tinrc variable of the same name

              thread_catchup_on_exit
                     Identical to the tinrc variable of the same name

              thread_format
                     Identical to the tinrc variable of the same name

              thread_perc
                     Identical to the tinrc variable of the same name

              trim_article_body
                     Identical to the tinrc variable of the same name

              suppress_soft_hyphens
                     Identical to the tinrc variable of the same name

              verbatim_handling
                     Identical to the tinrc variable of the same name

              wrap_on_next_unread
                     Identical to the tinrc variable of the same name

              x_body A piece of text that will be added at the start of a message body. If  this  string  starts
                     with a / or ~ then it is assumed to be the name of a file containing the text to insert. If
                     the  string  starts with a ! then what follows is assumed to be the path to a program to be
                     executed to generate the content. %G is expanded to the current news.group.name and  %P  is
                     expanded to the news.group.name with all '.' replaced by '/'.

              x_comment_to
                     Insert ''X-Comment-To:'' header, this is only useful in FIDO groups.

              x_headers
                     A  string  including  header-name and the contents of the header that will be automatically
                     added when posting. If the string starts with a / or ~ then it is assumed to be the name of
                     a file containing the header and its content to be inserted. If the string starts with a  !
                     then  what  follows  is  assumed to be the path to a program to be executed to generate the
                     header and its content. %G is expanded to the current news.group.name and %P is expanded to
                     the news.group.name with all '.' replaced by '/'.

              quick_kill_scope
                     A comma-separated list of newsgroup patterns (wildmat-style) to  which  groups  the  filter
                     rule  added  by  QuickFilterKill  will  be  applied.   If  unset the default from the tinrc
                     variable default_filter_kill_global will be used.

              quick_kill_expire
                     Identical to the tinrc variable default_filter_kill_expire

              quick_kill_case
                     Identical to the tinrc variable default_filter_kill_case

              quick_kill_header
                     Identical to the tinrc variable default_filter_kill_header

              quick_select_scope
                     A comma-separated list of newsgroup patterns (wildmat-style) to  which  groups  the  filter
                     rule  added  by  QuickFilterSelect  will  be  applied.  If unset the default from the tinrc
                     variable default_filter_select_global will be used.

              quick_select_expire
                     Identical to the tinrc variable default_filter_select_expire

              quick_select_case
                     Identical to the tinrc variable default_filter_select_case

              quick_select_header
                     Identical to the tinrc variable default_filter_select_header

              ispell Path and options for ispell(1)-like spell-checker, e.g., "aspell --mode=email --dont-backup
                     check"

              mm_network_charset
                     Identical to the tinrc variable of the same name

              undeclared_charset
                     Assume (broken) articles without MIME charset declaration have this charset  —  default  is
                     US-ASCII.  This  attribute  works only on systems with working iconv(3) or ucnv_*(), others
                     might have to compile tin(1) with --disable-mime-strict-charset.

              undeclared_cs_guess
                     Guess charset for (broken) articles without MIME charset declaration.  This attribute works
                     only on systems with working iconv(3) or ucnv_*() and ucsdet_getName() from libicui18n.  It
                     has no effect if undeclared_charset is also set.

              Example:
                     # include extra headers
                     # assume ISO-8859-1 as charset if no charset is declared
                     # in all but fido7.* groups
                     scope=*,!fido7.*
                     x_headers=~/.tin/headers
                     undeclared_charset=ISO-8859-1

                     # in *sources* set post process type to shar only
                     scope=*sources*
                     post_process_type=1

                     # in *binaries* turn on full post processing,
                     # remove tmp files and set Followup-To: poster
                     scope=*binaries*
                     post_process_type=2
                     delete_tmp_files=ON
                     followup_to=poster

                     # in fido.* newsgroups change quote_chars
                     # and add X-Comment-To: line
                     scope=fido.*
                     quote_chars=%I>_
                     x_comment_to=ON

                     # in fido7.* newsgroups guess charset
                     scope=fido7.*
                     undeclared_cs_guess=ON

                     # in *.test newsgroups, don't append signature
                     # and preset Subject
                     scope=*.test
                     sigfile=--none
                     x_headers=Subject: test - ignore - no reply

                     # assume ISO-2022-JP-2 as charset
                     scope=fj.*,japan.*
                     undeclared_charset=ISO-2022-JP-2

       ${TIN_HOMEDIR:-"$HOME"}/.tin/filter

              The filter file is used to assign scores to certain articles. Based on the score an article can be
              filtered  out (hidden) or marked hot.  The tinrc variables score_limit_kill and score_limit_select
              are the limits that must be crossed to mark an article as killed  or  selected.   Empty  lines  or
              lines  beginning with a '#' are ignored. Multiple matching-rules in the same scope are all applied
              individually and not only when they all hit at the same time (logical OR not AND).

              comment
                     Every entry (rule) in the filter file might get a comment. Multiple lines are allowed  (but
                     only  for  comments  yet). Every line must start with the "comment=" keyword. Comments must
                     appear first in the rule.  Comment lines  placed  within  a  rule  will  be  moved  to  the
                     beginning  of  the  next rule.  This might be changed in the future.  Don't use '#' to mark
                     comments as those lines are ignored and your comments will get lost on the  next  write  of
                     the file.

              group  A  comma-separated  list  of newsgroup patterns in wildmat-style to which groups the filter
                     rule will be applied. This line is mandatory!

              case   0=case-sensitive, 1=case-insensitive

              score  Score value of the rule; can also be one of the magic words "kill" or "hot".

              subj   Match against ''Subject:''. The matching type  used  (wildmat  or  regex)  depends  on  the
                     setting of the tinrc variable wildcard.

              from   Match  against  ''From:''.   tin(1) converts the contents of the ''From:'' header to an old
                     style e-mail  address,  e.g.,  ''some@body.example  (John  Doe)''  instead  of  ''John  Doe
                     <some@body.example>'', before trying to match the patterns in the filter rule. The matching
                     type used (wildmat or regex) depends on the setting of the tinrc variable wildcard.

              msgid  Match  against ''Message-ID:'' and full ''References:''. The matching type used (wildmat or
                     regex) depends on the setting of the tinrc variable wildcard.

              msgid_last
                     Match against ''Message-ID:'' and last ''References:'' entry (direct responses)  only.  The
                     matching  type  used  (wildmat  or  regex)  depends  on  the  setting of the tinrc variable
                     wildcard.

              msgid_only
                     Match against ''Message-ID:''. The matching type used (wildmat or  regex)  depends  on  the
                     setting of the tinrc variable wildcard.

              refs_only
                     Match  against  ''References:''.  The  matching type used (wildmat or regex) depends on the
                     setting of the tinrc variable wildcard.

              lines  Match against ''Lines:'', <num matches less than, >num matches more than.

              gnksa  Match against ''From:'' address parser return codes. <num matches less than,  >num  matches
                     more  than  the  returned numeric value. GNKSA_LOCAL_DOMAIN_LITERAL or GNKSA_INVALID_DOMAIN
                     are only returned if disable_gnksa_domain_check in /etc/tin/tin.defaults is set to OFF.  As
                     the   built-in   domain   list  may  be  outdated  this  should  be  considered  carefully.
                     GNKSA_ILLEGAL_LABEL_BEGNUM  is  only  only   returned   if   tin(1)   was   compiled   with
                     ENFORCE_RFC1034 defined which is usually not the case.
                             internal codes
                          0 GNKSA_OK
                          1 GNKSA_INTERNAL_ERROR
                             general syntactical errors
                        100 GNKSA_LANGLE_MISSING
                        101 GNKSA_LPAREN_MISSING
                        102 GNKSA_RPAREN_MISSING
                        103 GNKSA_ATSIGN_MISSING
                        104 GNKSA_RANGLE_MISSING
                             FQDN part syntax and semantics errors
                        200 GNKSA_SINGLE_DOMAIN
                        201 GNKSA_INVALID_DOMAIN
                        202 GNKSA_ILLEGAL_DOMAIN
                        203 GNKSA_UNKNOWN_DOMAIN
                        204 GNKSA_INVALID_FQDN_CHAR
                        205 GNKSA_ZERO_LENGTH_LABEL
                        206 GNKSA_ILLEGAL_LABEL_LENGTH
                        207 GNKSA_ILLEGAL_LABEL_HYPHEN
                        208 GNKSA_ILLEGAL_LABEL_BEGNUM
                        209 GNKSA_BAD_DOMAIN_LITERAL
                        210 GNKSA_LOCAL_DOMAIN_LITERAL
                        211 GNKSA_RBRACKET_MISSING
                             localpart syntactical errors
                        300 GNKSA_LOCALPART_MISSING
                        301 GNKSA_INVALID_LOCALPART
                        302 GNKSA_ZERO_LENGTH_LOCAL_WORD
                             realname part syntactical errors
                        400 GNKSA_ILLEGAL_UNQUOTED_CHAR
                        401 GNKSA_ILLEGAL_QUOTED_CHAR
                        402 GNKSA_ILLEGAL_ENCODED_CHAR
                        403 GNKSA_BAD_ENCODE_SYNTAX
                        404 GNKSA_ILLEGAL_PAREN_CHAR
                        405 GNKSA_INVALID_REALNAME
                        406 GNKSA_MISSING_REALNAME

              xref   Match  against ''Xref:'' line. Before any matching is done the line is turned into the same
                     format ''Newsgroups:'' has: it is turned into a comma separated  newsgroup  list  with  all
                     other  information  (i.e., the article counter) removed. The matching type used (wildmat or
                     regex) depends on the setting of the tinrc variable wildcard.

              path   Match against ''Path:'' line. This may not work on some servers.  The  matching  type  used
                     (wildmat or regex) depends on the setting of the tinrc variable wildcard.

              time   time_t value when rule expires

              Example:
                     comment=mark all articles about tin, rtin,
                     comment=tind, ktin or cdtin as hot
                     group=*
                     case=1
                     score=hot
                     subj=\b(cd|[rk]?)?tin(d|pre)?[-.0–9]*\b

                     comment=downscore postings in nsr from google based on
                     comment=message-id or path, if both hit they end up with
                     comment=a score of -66 which is enough to mark them killed
                     group=news.software.readers
                     case=1
                     score=-33
                     path=.googlegroups.com!not-for-mail$
                     msgid_only=@googlegroups.com>

       ${TIN_HOMEDIR:-"$HOME"}/.tin/keymap${${LC_ALL:-"${LC_MESSAGES:-"${LC_CTYPE:-"$LANG"}"}"}:+".${LC_ALL:
       -"${LC_MESSAGES:-"${LC_CTYPE:-"$LANG"}"}"}"}

       /etc/tin/keymap${${LC_ALL:-"${LC_MESSAGES:-"${LC_CTYPE:-"$LANG"}"}"}:+".${LC_ALL:-"${LC_MESSAGES:
       -"${LC_CTYPE:-"$LANG"}"}"}"}

              Keymap-file,  containing "keyname value [value]" pairs separated by spaces or tabs. If the keymap-
              file named with full specified locale(5) is not found, less specific ones are looked for.  Various
              parts will be stripped off the name, in the following order codeset, normalized codeset, territory
              and  modifier  when  looking  for the keymap-file.  Below is a list of all rebindable keynames and
              their defaults. If a keyname is bound to NULL it is unassigned.

              ShellEscape                    !
              SetRange                       #
              LastPage                       $
              ToggleColor                    &
              LastViewed                     -
              SearchRepeat                   \
              SearchSubjF                    /
              SearchSubjB                    ?
              SearchAuthB                    A
              SearchBody                     B
              CatchupNextUnread              C
              EditFilter                     E
              ToggleHelpDisplay              H
              ToggleInverseVideo             I
              ConnectionInfo                 J
              LookupMessage                  L
              OptionMenu                     M
              Postponed                      O    ^O
              QuitTin                        Q
              BugReport                      R
              DisplayPostHist                W
              MarkThrUnread                  Z
              FirstPage                      ^
              SearchAuthF                    a
              Catchup                        c
              Help                           h
              ToggleInfoLastLine             i
              Down                           j    ^N
              Up                             k    ^P
              Print                          o
              Quit                           q
              Version                        v
              Post                           w
              MarkArtUnread                  z
              QuickFilterSelect              [
              QuickFilterKill                ]
              Pipe                           |
              ScrollUp                       <
              ScrollDown                     >
              PageUp                         b    ^B   ^U
              PageDown                       ^D   ^F   SPACE
              RedrawScr                      ^L
              Postponed                      ^O
              MenuFilterSelect               ^A
              MenuFilterKill                 ^K
              MarkFeedRead                   ^X
              MarkFeedUnread                 ^W

              AttachSelect                   ^J   ^M
              AttachPipe                     p
              AttachSave                     s
              AttachTag                      t
              AttachUntag                    U
              AttachTagPattern               =
              AttachToggleTagged             @

              ConfigToggleAttrib             TAB
              ConfigSelect                   ^J   ^M
              ConfigLastPage                 G
              ConfigNoSave                   Q
              ConfigScopeMenu                S
              ConfigServerrcMenu             s
              ConfigFirstPage                g
              ConfigResetAttrib              r

              FeedTag                        T
              FeedArt                        a
              FeedHot                        h
              FeedPat                        p
              FeedRepost                     r
              FeedSupersede                  s
              FeedThd                        t

              FilterEdit                     e
              FilterSave                     s

              GroupNextUnreadArtOrGrp        TAB
              GroupReadBasenote              ^J   ^M
              GroupSelThd                    *
              GroupDoAutoSel                 +
              GroupToggleThdSel              .
              GroupSelThdIfUnreadSelected    ;
              GroupSelPattern                =
              GroupReverseSel                @
              GroupCancel                    D
              GroupToggleGetartLimit         G
              GroupMarkThdRead               K
              GroupNextUnreadArt             N
              GroupPrevUnreadArt             P
              GroupAutoSave                  S
              GroupTagParts                  T
              GroupUntag                     U
              GroupMarkUnselArtRead          X
              GroupToggleSubjDisplay         d
              GroupGoto                      g
              GroupListThd                   l
              GroupMail                      m
              GroupNextGroup                 n
              GroupPrevGroup                 p
              GroupToggleReadUnread          r
              GroupSave                      s
              GroupTag                       t
              GroupToggleThreading           u
              GroupRepost                    x
              GroupUndoSel                   ~

              HelpLastPage                   G
              HelpFirstPage                  g

              PageReplyQuoteHeaders          ^E
              PagePGPCheckArticle            ^G
              PageToggleRaw                  ^H
              PageNextUnread                 TAB
              PageNextThd                    ^J   ^M
              PageToggleTabs                 ^T
              PageFollowupQuoteHeaders       ^W
              PageToggleTex2iso              "
              PageToggleAllHeaders           *
              PageArticleInfo                '
              PageToggleRot                  %
              PageToggleUue                  (
              PageReveal                     )
              PageSkipIncludedText           :
              PageTopThd                     <
              PageBotThd                     >
              PageCancel                     D
              PageFollowup                   F
              PageLastPage                   G
              PageKillThd                    K
              PageNextUnreadArt              N
              PagePrevUnreadArt              P
              PageReply                      R
              PageAutoSave                   S
              PageGroupSel                   T
              PageViewUrl                    U
              PageViewAttach                 V
              PageToggleHighlight            _
              PageToggleVerbatim             ,
              PageEditArticle                e
              PageFollowupQuote              f
              PageFirstPage                  g
              PageListThd                    l
              PageMail                       m
              PageNextArt                    n
              PagePrevArt                    p
              PageReplyQuote                 r
              PageSave                       s
              PageTag                        t
              PageGotoParent                 u
              PageRepost                     x

              PgpEncSign                     b
              PgpEncrypt                     e
              PgpIncludekey                  i
              PgpSign                        s

              PostAbort                      a
              PostContinue                   c
              PostCancel                     d
              PostEdit                       e
              PostPGP                        g
              PostIspell                     i
              PostIgnore                     i
              PostMail                       m
              PostPostpone                   o
              PostPost                       p    y
              PostSupersede                  s
              PostSend                       s    y

              PostedArticlesSelect           ^J   ^M

              PostponeOverride               Y
              PostponeAll                    A

              PromptYes                      y    Y
              PromptNo                       n    N

              PProcNone                      n
              PProcShar                      s
              PProcYes                       y

              SaveAppendFile                 a
              SaveOverwriteFile              o

              SelectEnterNextUnreadGrp       TAB  n
              SelectReadGrp                  ^J   ^M
              SelectResetNewsrc              ^R
              SelectSortActive               .
              SelectNextUnreadGrp            N
              SelectSubscribePat             S
              SelectUnsubscribePat           U
              SelectQuitNoWrite              X
              SelectSyncWithActive           Y
              SelectToggleDescriptions       d
              SelectGoto                     g
              SelectMoveGrp                  m
              SelectToggleReadDisplay        r
              SelectSubscribe                s
              SelectUnsubscribe              u
              SelectYankActive               y
              SelectMarkGrpUnread            z    Z

              ScopeSelect                    ^J   ^M
              ScopeEditAttributesFile        E
              ScopeAdd                       a
              ScopeDelete                    d
              ScopeMove                      m
              ScopeRename                    r

              ThreadReadNextArtOrThread      TAB
              ThreadReadArt                  ^J   ^M
              ThreadSelArt                   *
              ThreadToggleArtSel             .
              ThreadReverseSel               @
              ThreadCancel                   D
              ThreadFollowup                 F
              ThreadMarkArtRead              K
              ThreadAutoSave                 S
              ThreadUntag                    U
              ThreadToggleSubjDisplay        d
              ThreadFollowupQuote            f
              ThreadMail                     m
              ThreadSave                     s
              ThreadTag                      t
              ThreadTagParts                 T
              ThreadUndoSel                  ~

              UrlSelect                      ^J   ^M

       ${TIN_HOMEDIR:-"$HOME"}/.tin/mailgroups

              This file provides short descriptions of each mailgroup. (requires tin(1) to  be  built  with  mh-
              mail-handling  support).  Each  line  consist  of two tab-separated fields "mailgroupname one-line
              description".

              mailgroupname
                     is the name of the newsgroup

              description
                     is a short single-line description of the group

       ${TIN_HOMEDIR:-"$HOME"}/.tin/newsrctable

              "nntpserver[:port] newsrc [shortname [...]]"  pairs to use with the  ''-g''  command-line  switch.
              The  matching  is  case-insensitive  and any line that starts with "#", ";" or " " is treated as a
              comment. This is only available if reading via NNTP.

              nntpserver
                     full qualified domain name of the news server. Plain  IPv6  address  must  be  enclosed  in
                     square  brackets.  Additionally, a port can be specified by appending :portnumber. Be aware
                     that if a port is given it will override any port given with ''-g'' or ''-p'' or implied by
                     ''-T'' or ''-k'' or set via $NNTPPORT. The string "default" or  "*"  acts  as  wildcard  to
                     match any name, such a line should be placed last.

              newsrc related newsrc. A file specified via ''-f'' has a higher priority.

              shortname
                     nickname(s) for the nntpserver. Nicknames must not contain ":" and must be unique.

              Example:
                     # sample newsrctable file
                     news.tin.org .newsrc-tin.org tinorg
                     news.example.org /tmp/nrc-ex example ex
                     [::1]:1119 /tmp/localhost6–1119 lh6
                     # catch all rules should go last
                     # with the more specific one on top
                     *:563 ~/.tin/newsrcs/${NNTPSERVER-localhost}:563/newsrc
                     * ~/.tin/newsrcs/${NNTPSERVER-localhost}/newsrc

       ${TIN_HOMEDIR:-"$HOME"}/.tin/posted

              Posting  history.  The  file  is  written  by tin(1) and used by DisplayPostHist ('W') command. It
              should not be altered manually. Any line that starts with  "#"  is  a  comment.  Blank  lines  are
              ignored.  All  other  lines  shall consist of at least four pipe-separated fields, starting with a
              time stamp "dd-mm-yy", a single letter indicating the action which initiated the message, a  group
              name  or  a  mail  address  the message was sent to, the subject of the message and optionally the
              messages ''Message-ID'' if known.

       ${TIN_HOMEDIR:-"$HOME"}/Mail/posted

              Copy of  all  posted  articles  in  mbox(5)  format.  The  filename  can  be  changed  by  setting
              posted_articles_file.

       ${TIN_HOMEDIR:-"$HOME"}/.tin/postponed.articles

              Pool of postponed articles. This file is in mbox(5) format.

       ${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/motd

              This file is a copy of the servers message of the day (MOTD) message.  It is automatically created
              on startup except when using the ''-Q'' command-line option and is unlinked on exit.

       ${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/msglog

              File to store $NNTPSERVER related info- and error-messages. The file is overwritten on startup and
              meant for debugging.

       ${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/newsgroups

              This  file  is  a  copy  of  the servers newsgroups file which provides short descriptions of each
              newsgroup. It is automatically updated on startup except when using the ''-X''or  ''-q''  command-
              line   option   and   an   old  copy  exists.  Each  line  consist  of  two  tab-separated  fields
              "group.name                    one-line description".

              group.name
                     is the name of the newsgroup

              one-line description
                     is a short single-line description of the group

       ${TIN_HOMEDIR:-"$HOME"}/.tin/$NNTPSERVER/serverrc

              File to store $NNTPSERVER related data via a list of "variable=value" pairs. Currently  there  are
              only   a   few  variables,  and  some  are  not  meant  to  be  changed  by  the  user.  See  also
              ConfigServerrcMenu ('s') in section "SERVERRC MENU" in tin(1).

              version
                     Internal version number.

              add_cmd_line_opts
                     Additional command line options. Acts like $TINRC but server specific.  Be aware  that  the
                     file is read after the command line options and may override them.  The allowed options are
                     currently  limited to ''-4'', ''-6'', ''-A'', ''-C'', ''-d'', ''-G limit'', ''-k'', ''-n'',
                     ''-p port'', ''-q'', ''-Q'', ''-t timeout'', ''-T'' and ''-x''.  The default is unset.

              disabled_nntp_cmds
                     A comma separated list of NNTP commands which should be avoided.  This can be used to  work
                     around  some  buggy servers and usually should left blank. Switching off XHDR also switches
                     off HDR and vice versa.  The following commands can be disabled:
                        AUTHINFO SASL
                        CAPABILITIES
                        COMPRESS DEFLATE
                        HDR
                        LIST COUNTS
                        LIST DISTRIB.PATS
                        LIST DISTRIBUTIONS
                        LIST HEADERS
                        LIST MOTD
                        LIST NEWSGROUPS
                        LIST OVERVIEW.FMT
                        LIST SUBSCRIPTIONS
                        LISTGROUP
                        NEWGROUPS
                        OVER
                        XHDR
                        XOVER
                        XPAT

              nntp_pipeline_limit
                     Number of pipelined NNTP commands to send. Set to 1 if server does not support  pipelining.
                     Default is 50. Allowed maximum is 256.

              cache_overview_files
                     Identical  to  the  tinrc  variable  of  the  same name but overrides it.  Be aware the the
                     serverrc variable will not be promoted to  the  tinrc,  but  the  tinrc  variable  will  be
                     promoted to the serverrc if changed in the OptionMenu ('M').

              compress_overview_files
                     Identical  to  the  tinrc  variable  of  the  same name but overrides it.  Be aware the the
                     serverrc variable will not be promoted to  the  tinrc,  but  the  tinrc  variable  will  be
                     promoted to the serverrc if changed in the OptionMenu ('M').

              motd_hash
                     Internal hash of the servers MOTD, so displaying it can be skipped if it is unchanged.

              last_newnews
                     Internal timestamp used by tin(1) to keep track of new newsgroups on the server.

       /etc/tin/tinrc
       ${TIN_HOMEDIR:-"$HOME"}/.tin/tinrc

              At startup, tin(1) reads in the configuration file. This contains a list of "variable=value" pairs
              that  can  be  used to configure the way tin(1) works. value strings are limited to 1022 chars and
              will be discarded  if  exceeding  this  limit.  If  it  exists,  the  global  configuration  file,
              ${TIN_LIBDIR:-NEWSLIBDIR}/tinrc  is  read  first.  After  that,  the user's own configuration file
              ${TIN_HOMEDIR:-"$HOME"}/.tin/tinrc is read. The global file is useful for distributing system-wide
              defaults to new users who have no private tinrc yet (see also /etc/tin/tin.defaults).

              abbreviate_groupname
                     If ON abbreviate long newsgroup names at  group  selection  level  and  article  level  (if
                     necessary)  like  this:  news.software.readers  → n.software.readers → n.s.readers → n.s.r.
                     Default is OFF.

              add_posted_to_filter
                     If ON add posted articles which start a new thread to filter for  highlighting  follow-ups.
                     Default is ON.

              advertising
                     Turn ON advertising in header (''User-Agent:''). Default is ON.

              alternative_handling
                     If ON strip multipart/alternative messages automatically. Default is ON.

              art_marked_deleted
                     The character used to show that an article was deleted. Default is 'D'.

              art_marked_inrange
                     The character used to show that an article is in a range. Default is '#'.

              art_marked_return
                     The  character used to show that an article will return as an unread article when the group
                     is next entered. Default is '-'.

              art_marked_selected
                     The character used to show that an article/thread is auto-selected (hot).  Default is '*'.

              art_marked_recent
                     The character used to show that an article/thread is recent (not older than  X  days).  See
                     also recent_time. Default is 'o'.

              art_marked_unread
                     The character used to show that an article has not been read.  Default is '+'.

              art_marked_read
                     The character used to show that an article was read. Default is ' '.

              art_marked_killed
                     The  character used to show that an article was killed. Default is 'K'.  kill_level must be
                     set accordingly.

              art_marked_read_selected
                     The character used to show that an article was hot before it was  read.   Default  is  ':'.
                     kill_level must be set accordingly.

              Ask before using MIME viewer (ask_for_metamail)
                     If  ON tin(1) will ask before using a MIME viewer (metamail_prog) to display MIME messages.
                     This only occurs if a MIME viewer is set. Default is OFF.

              attachment_format
                     Format string tin(1) uses for Attachment level representation.  Default is "%t%s%e%c%d".

              auto_cc_bcc
                     Automatically put your name in the ''Cc:'' (1) or ''Bcc:'' (2) field or to both (3)  fields
                     when mailing an article. Default is 'No' (0).

              auto_list_thread
                     If ON automatically list thread when entering it using right arrow key.  Default is ON.

              auto_reconnect
                     Reconnect to server automatically. Default is OFF.

              batch_save
                     If  set  ON  articles/threads  will be saved in batch mode when save ''-S'' or mail ''-M'',
                     ''-N'' is specified on the command line.  Default is ON.

              beginner_level
                     If set ON a mini menu of the most useful commands will be displayed at the  bottom  of  the
                     screen  for each level. Also a short posting etiquette will be displayed after composing an
                     article. Default is ON.

              cache_overview_files
                     If ON, create local copies of NNTP overview files. This can be used to  considerably  speed
                     up accessing large groups when using a slow connection.  Default is OFF.

              compress_overview_files
                     If  ON,  locally  cached NNTP overview files (cache_overview_files) are saved in compressed
                     form (RFC 1952). Useful to reduce local disk space used. Default is OFF.

              cancel_lock_algo
                     Use this hash algorithm for cancel-locks (RFC 8315). Only available when built with cancel-
                     lock support. none disables the generation of cancel-locks. Valid values  are  none,  sha1,
                     sha256 and sha512.  Default is sha1.

              catchup_read_groups
                     If  set  ON  the  user is asked when quitting if all groups read during the current session
                     should be marked read. Default is OFF.

              col_back
                     Standard background color

              col_extquote
                     Color of quoted text from external sources

              col_from
                     Color of sender (From:)

              col_head
                     Color of header-lines

              col_help
                     Color of help pages

              col_invers_bg
                     Color of background for inverse text

              col_invers_fg
                     Color of foreground for inverse text

              col_markdash
                     Color of words emphasized like _this_. See also word_h_display_marks and word_highlight.

              col_markslash
                     Color of words emphasized like /this/. See also word_h_display_marks and word_highlight.

              col_markstar
                     Color of words emphasized like *this*. See also word_h_display_marks and word_highlight.

              col_markstroke
                     Color of words emphasized like -this-. See also word_h_display_marks and word_highlight.

              col_message
                     Color of status messages in last line

              col_minihelp
                     Color of mini help menu

              col_newsheaders
                     Color of actual news header fields

              col_normal
                     Standard foreground color

              col_quote
                     Color of quoted lines

              col_quote2
                     Color of twice quoted lines

              col_quote3
                     Color of >=3 times quoted lines

              col_response
                     Color of response counter. This is the text that says "Response x  of  y"  in  the  article
                     viewer.

              col_signature
                     Color of signatures

              col_score_neg
                     Color of negative score

              col_score_pos
                     Color of positive score

              col_urls
                     Color of urls highlight

              col_verbatim
                     Color of verbatim blocks

              col_subject
                     Color of article subject

              col_text
                     Color of text-lines

              col_title
                     Color of help/mail sign

              confirm_choice
                     tin(1) can ask for manual confirmation to protect the user. Available choices:
                          commands:  Ask  for  confirmation  before  executing certain dangerous commands (e.g.,
                          Catchup ('c')). Commands that this affects are marked  in  this  manual  with  '[after
                          confirmation]'.

                          quit:  You'll  be  asked to confirm that you wish to exit tin(1) when you use the Quit
                          ('q') command.

                          select:   Ask   for   confirmation   before   marking   all   not    selected    (with
                          GroupMarkUnselArtRead ('X') command) articles as read.
                     Default is commands & quit.

              date_format
                     Format  string  used for date representation. A description of the different format options
                     can be found at strftime(3).  tin(1) uses strftime(3)  when  available  and  supports  most
                     format options in his fallback code.  Default is "%a, %d %b %Y %H:%M:%S".

              default_art_search

              default_author_search

              default_config_search
                     The last article/author/config option that was searched for.

              default_filter_days
                     Default is 28.

              default_filter_kill_case
                     Default for quick (1 key) kill filter case.  ON = filter case sensitive, OFF = ignore case.
                     Default is OFF.

              default_filter_kill_expire
                     Default  for  quick  (1  key) kill filter expire.  ON = limit to default_filter_days, OFF =
                     don't ever expire. Default is OFF.

              default_filter_kill_global
                     Default for quick (1 key) kill filter global.  ON=apply to all groups, OFF=apply to current
                     group. Default is ON.

              default_filter_kill_header
                     Default for quick (1 key) kill filter header.
                        0   ''Subject:'' (case sensitive)
                        1   ''Subject:'' (ignore case)
                        2   ''From:'' (case sensitive)
                        3   ''From:'' (ignore case)
                        4   ''Message-ID:'' & full ''References:'' line
                        5   ''Message-ID:'' & last ''References:'' entry only
                        6   ''Message-ID:'' entry only
                        7   ''Lines:''

              default_filter_select_case
                     Default for quick (1 key) auto-selection filter case. ON=filter case sensitive,  OFF=ignore
                     case. Default is OFF.

              default_filter_select_expire
                     Default for quick (1 key) auto-selection filter expire.  ON = limit to default_filter_days,
                     OFF = don't ever expire.  Default is OFF.

              default_filter_select_global
                     Default  for quick (1 key) auto-selection filter global.  ON=apply to all groups, OFF=apply
                     to current group. Default is ON.

              default_filter_select_header
                     Default for quick (1 key) auto-selection filter header.
                        0   ''Subject:'' (case sensitive)
                        1   ''Subject:'' (ignore case)
                        2   ''From:'' (case sensitive)
                        3   ''From:'' (ignore case)
                        4   ''Message-ID:'' & full ''References:'' line
                        5   ''Message-ID:'' & last ''References:'' entry only
                        6   ''Message-ID:'' entry only
                        7   ''Lines:''

              default_goto_group

              default_group_search

              default_mail_address

              default_move_group

              default_pattern

              default_pipe_command

              default_post_newsgroups

              default_post_subject

              default_range_group

              default_range_select

              default_range_thread

              default_repost_group

              default_save_file

              default_save_mode

              default_select_pattern

              default_shell_command

              default_subject_search

              dont_break_words
                     Do not break long lines inside a word. This applies to the body except for verbatim blocks.
                     See also wrap_column. Default is OFF.

              draw_arrow
                     Allows groups/articles to be selected by an arrow '→' if set ON or by a highlighted bar  if
                     set OFF. Default is OFF.

              editor_format
                     The  format string used to create the editor start command with parameters.  Default is '%E
                     +%N %F' with %E=Editor, %N=Linenumber and %F=Filename (e.g., /bin/vi +7 .article). See also
                     $VISUAL and $EDITOR under "ENVIRONMENT" in tin(1)

              extquote_handling
                     If ON quotes from external sources will be detected. Default is OFF.

              extquote_regex
                     A regular expression that will be applied when reading articles.  All  matching  lines  are
                     shown in col_extquote. If extquote_regex is blank, then tin(1) uses a built-in default.

              force_screen_redraw
                     Specifies  whether  a  screen redraw should always be done after certain external commands.
                     Default is OFF.

              getart_limit
                     If getart_limit is > 0 not more than the last getart_limit articles/group are fetched  from
                     the  server.  If  getart_limit  is  < 0 tin(1) will start fetching articles from your first
                     unread minus absolute value of getart_limit. Default is 0, which means no limit.

              goto_next_unread
                     Which keys tin(1) should accept to jump to  the  next  unread  article.   Possible  is  any
                     combination  of PageDown and PageNextUnread.  When PageDown is set tin(1) jumps to the next
                     article at the end of the current one. When PageNextUnread is set tin(1) jumps  immediately
                     to the next article when PageNextUnread ('<TAB>') is pressed. Default is PageNextUnread.

              group_catchup_on_exit
                     If ON catchup group when leaving with the left arrow key. Default is ON.

              group_format
                     The format string used for the Group level. Default is "%n %m %R %L  %s  %F". The following
                     substitutions are supported:
                        %D date
                        %F from, name and/or address
                        %I initials
                        %L line count
                        %M message-id
                        %R number of responses in thread
                        %S score
                        %m article marks
                        %n current thread number
                        %s subject
                        %% %

              hide_inline_data
                     If  set to 'Nothing' (0) then raw data is displayed.  If set to 'Complete UU/YENC' (1) then
                     sections of uuencoded or yenc data will be shown with a single tag line  showing  the  size
                     and  filename  (much  the same as a MIME attachment).  If set to 'Any UU/YENC' (2) then any
                     line that looks like uuencoded or yenc data will be folded into a tag line. This is  useful
                     when  uuencoded  or  yenc  data  is split across more than one article but can also lead to
                     false positives.  If set to 'Inline PGP' (4) then any inline PGP data is hidden.  If set to
                     'Shar' (8) then shar-archives are hidden, this should be used with  care  as  it  may  hide
                     other  shell  snippets and any following text as well.  This setting can also be toggled in
                     the article viewer via PageToggleUue ('(').  Default is 'Nothing' (0). The possible  values
                     are:
                         0   Nothing
                         1   Complete UU/YENC
                         2   Any UU/YENC
                         4   Inline PGP
                         5   Complete UU/YENC & Inline PGP
                         6   Any UU/YENC & Inline PGP
                         8   Shar
                         9   Complete UU/YENC & Shar
                        10   Any UU/YENC & Shar
                        12   Inline PGP & Shar
                        13   Compl. UU/YENC & PGP & Shar
                        15   Hide all

              hideline_regex
                     A  regular  expression  to  hide  matching  lines in pager. Could be used to hide excessive
                     quoting, e.g. via '^>\s?>\s?>'. If left blank, no lines will be hidden.  This  option  does
                     not  affect  lines  within  verbatim  blocks  and  is  applied  after trim_article_body and
                     suppress_soft_hyphens.

              inews_prog
                     Path, name and options of external inews(1).  If you are reading via NNTP the default value
                     is "--internal" (use built-in NNTP inews), else it is "inews -h". The article is passed  to
                     inews_prog on STDIN via '< article'.

              info_in_last_line
                     If ON, show current group description or article subject in the last line (not in the pager
                     and global menu) — ToggleInfoLastLine ('i') toggles setting. This facility is useful as the
                     full width of the screen is available to display long subjects. Default is OFF.

              interactive_mailer
                     If  greater than 0 your mailreader will be invoked earlier for reply so you can use more of
                     its features (e.g., MIME, pgp, ...). 1 means include headers, 2 means don't include headers
                     (old use_mailreader_i=ON option). 0 turns off usage. This option has to suit mailer_format.
                     Default is 0.

              inverse_okay
                     If ON use inverse video for page headers and URL highlighting.  Default is ON.

              keep_dead_articles
                     If ON keep all failed postings in ${TIN_HOMEDIR:-"$HOME"}/dead.articles besides keeping the
                     last failed posting in ${TIN_HOMEDIR:-"$HOME"}/dead.article. Default is ON.

              keep_expired_filters
                     If ON keep expired filter rules in the file, but no longer evaluate them.  Default is OFF.

              kill_level
                     This option controls the processing and display of articles that are killed.  There  are  3
                     options, default is 0 (Kill only unread arts).

                        0  Kill  only unread arts is the 'traditional' behavior of tin(1).  Only unread articles
                           are killed once only by marking them  read.  As  filtering  only  happens  on  unread
                           articles with kill_level set to 0, art_marked_killed and art_marked_read_selected are
                           only shown once. When you reenter the group the mark will be gone.

                        1  Kill  all  arts  &  show  with K will process all articles in the group and therefore
                           there is a processing overhead when using this option. Killed articles  are  threaded
                           as normal but they will be marked with art_marked_killed.

                        2  Kill  all  arts  and  never show will process all articles in the group and therefore
                           there is a processing overhead when using this option. Killed  articles  simply  does
                           not get displayed at all.

              mail_8bit_header
                     Allows 8-bit characters unencoded in the header of mail message. Default is OFF. Turning it
                     ON  is effective only if mail_mime_encoding is also set to 8bit. Leaving it OFF is safe for
                     most users and compliant to Internet Mail Standard (RFC 5322 and RFC 2047).

              mail_address
                     User's mail address (and full name), if not  username@host.  This  is  used  when  creating
                     articles, sending mail and when pgp(1) signing.

              mail_mime_encoding
                     MIME  encoding  of  the body in mail message, if necessary (8bit, base64, quoted-printable,
                     7bit). Default is quoted-printable.

              mail_quote_format
                     Format of quote  line  when  replying  (via  mail)  to  an  article  (%A=Address,  %D=Date,
                     %F=Fullname+Address,  %G=Groupname, %M=Message-ID, %N=Fullname, %C=Firstname, %I=Initials).
                     If the article has multiple addresses only the first is evaluated. Default is  "In  article
                     %M you wrote:"

              mailbox_format
                     Select one of the following mailbox-formats: MBOXO (default, except on SCO), MBOXRD or MMDF
                     (default on SCO). See mbox(5) and RFC 4155 for more details on MBOXO and MBOXRD and mmdf(5)
                     for more details about MMDF.

              maildir
                     The  directory  where  articles/threads  are to be saved in mbox(5) format. This feature is
                     mainly  for  use  with  the  mutt(1)  mail  program.   It   allows   the   user   to   save
                     articles/threads/groups  simply  by  giving  '='  as  the  filename to save to.  Default is
                     ${TIN_HOMEDIR:-"$HOME"}/Mail.

              mailer_format
                     The format string used to create the mailer  command  with  parameters  that  is  used  for
                     mailing  articles  to  other  people.  Default  is '%M "%T" < %F' (e.g., /bin/mail "iain" <
                     ~/.article).  The  flexible  format  allows  other  mailers  with  different  command  line
                     parameters to be used such as
                        sendmail -oem -t < %F
                        mutt -H %F
                        claws-mail --compose "mailto:%T?subject=%S&insert=%F"
                     interactive_mailer must be set adequate. The following substitutions are supported:
                        %F filename
                        %M default_mailer
                        %S subject-field
                        %T to-filed
                        %U username
                        %% %

              mark_saved_read
                     If ON mark articles that are saved as read. Default is ON.

              mark_ignore_tags
                     When  this  is ON, the GroupMarkThdRead ('K'), ThreadMarkArtRead ('K'), MarkThdUnread ('Z')
                     at Group level and MarkArtUnread ('z') at Thread level  functions  mark  just  the  current
                     article  or  thread,  ignoring other tagged, (un)read articles. When OFF, the same function
                     presents a menu with choices of the current thread or article, all tagged, unread articles,
                     or nothing.

              metamail_prog
                     Path, name and options of external metamail(1) program used to view  non-textual  parts  of
                     articles.   To  use  the built-in viewer, set to --internal. This is the default value when
                     metamail(1) is not installed. Leave it blank if you don't want  any  automatic  viewing  of
                     non-textual  attachments.  The  PageViewAttach ('V') command can always be used to manually
                     view any attachments. See also ask_for_metamail.

              mm_charset
                     Charset supported locally, which is also  used  for  MIME  header  (charset  parameter  and
                     charset  name  in  header  encoding)  in  mail and news postings. If MIME_STRICT_CHARSET is
                     defined at compile time, text in  charset  other  than  the  value  of  this  parameter  is
                     considered  not  displayable  and  represented  as  '?'.  Otherwise, all character sets are
                     regarded as compatible with the display. If it's not set,  the  value  of  the  environment
                     variable  $MM_CHARSET  is used. US-ASCII or compile-time default is used in case neither of
                     them is defined. If your system supports iconv(3) or ucnv_*(), this option is disabled  and
                     you should use mm_network_charset instead.

              mm_network_charset
                     Charset  used  for  posting  and  MIME  headers;  replaces  mm_charset.  Conversion between
                     mm_network_charset and local charset (determined via nl_langinfo(3)) is done  via  iconv(3)
                     or  ucnv_*().   If  none  of  these  functions  are available on your system this option is
                     disabled and you have to use mm_charset instead. mm_network_charset is limited  to  one  of
                     the following charsets:
                        US-ASCII,   ISO-8859-{1,2,3,4,5,7,9,10,13,14,15,16},   KOI8-{R,U,RU}  EUC-{CN,JP,KR,TW},
                        ISO-2022-{CN,CN-EXT,JP,JP-1,JP-2}, Big5, UTF-8
                     Not all values might work on your system, see iconv_open(3) for more details. If  it's  not
                     set,  the  value  of the environment variable $MM_CHARSET is used. US-ASCII or compile-time
                     default is used in case neither of them is defined.

              mono_markdash
                     Character attribute of words emphasized like _this_. It  depends  on  your  terminal  which
                     attributes are usable. See also word_h_display_marks and word_highlight.

              mono_markslash
                     Character  attribute  of  words  emphasized  like /this/. It depends on your terminal which
                     attributes are usable. See also word_h_display_marks and word_highlight.

              mono_markstar
                     Character attribute of words emphasized like *this*. It  depends  on  your  terminal  which
                     attributes are usable. See also word_h_display_marks and word_highlight.

              mono_markstroke
                     Character  attribute  of  words  emphasized  like -this-. It depends on your terminal which
                     attributes are usable. See also word_h_display_marks and word_highlight.

              newnews
                     These are internal timers used by tin(1) to keep track of new  newsgroups.  Do  not  change
                     them unless you understand what they are for.

              news_headers_to_display
                     Which  news  headers you wish to see. If you want to see _all_ the headers, place an '*' as
                     this value. This is the only way a wildcard can be used.  If you enter 'X-' as  the  value,
                     you  will  see  all  headers beginning with 'X-' (like X-Alan or X-Pape). You can list more
                     than one by delimiting with spaces. Not defining anything turns off this option.

              news_headers_to_not_display
                     Same as news_headers_to_display except it denotes the opposite. An example  of  using  both
                     options  might  be  if you thought 'X-' headers were A Good Thing(tm), but thought Alan and
                     Pape   were   miscreants...   well   then   you   would    do    something    like    this:
                     news_headers_to_display=X-  news_headers_to_not_display=X-Alan X-Pape Not defining anything
                     turns off this option.

              news_quote_format
                     Format  of  quote  line  when  posting/following  up  an  article   (%A=Address,   %D=Date,
                     %F=Fullname+Address,  %G=Groupname, %M=Message-ID, %N=Fullname, %C=Firstname, %I=Initials).
                     If the article has multiple addresses only the first is evaluated. Default is "%F wrote:".

              nntp_read_timeout_secs
                     Time in seconds to wait for a response from the server. Default is 120.

              normalization_form
                     The normalization form which should be used  to  normalize  Unicode  input.   The  possible
                     values are:

                        0  None: no normalization

                        1  NFKC: Compatibility Decomposition, followed by Canonical Composition

                        2  NFKD: Compatibility Decomposition

                        3  NFC: Canonical Decomposition, followed by Canonical Composition

                        4  NFD: Canonical Decomposition

                        5  NFKC_CF:  Compatibility  Decomposition,  followed  by  Canonical Composition and Case
                           Folding
              Some normalization modes are only available if they are supported by the library tin(1) uses to do
              the normalization. NFC should be used if possible (RFC 5198).

              page_mime_format
                     Format  string  tin(1)  uses  for  mime  header   at   Page   level.    Default   is   "[--
                     %T%S%*n%z%*l%!c%!d%*e --]".

              page_uue_format
                     Format  string  tin(1)  uses for uue header at Page level.  Default is "[-- %T%S%*n%I%!d%*e
                     --]".

              page_yenc_format
                     Format string tin(1) uses for  yenc  header  at  Page  level.   Default  is  "[--  %*N%!d%I
                     [%F%G]%V%W%X --]".

              pos_first_unread
                     If ON put cursor at first unread article in group otherwise at last article. Default is ON.

              post_8bit_header
                     Allows  8-bit  characters  unencoded  in  the  header  of  a news article, if set this also
                     disables the generation of MIME-headers when they are usually  required.  Default  is  OFF.
                     Only  enacted  if  post_mime_encoding is also set to 8bit. In a number of local hierarchies
                     where 8-bit characters are used, using  unencoded  (raw)  8-bit  characters  in  header  is
                     acceptable  and sometimes even recommended so that you need to check the convention adopted
                     in  the  local  hierarchy  of  your  interest  to  determine  what  to  do  with  this  and
                     post_mime_encoding.

              post_mime_encoding
                     MIME  encoding  of the body in news message, if necessary. (8bit, base64, quoted-printable,
                     7bit). Default is 8bit, which leads  to  no  encoding.   base64  and  quoted-printable  are
                     usually undesired on usenet.

              post_process_view
                     If  ON, then tin(1) will start an appropriate viewer program to display any files that were
                     post processed and uudecoded. The program is determined using the mailcap(5) file.  Default
                     is ON.

              post_process_type
                     This  specifies  whether  to  perform post processing on saved articles.  Because the shell
                     archive may contain commands you may not want to be executed, be  careful  when  extracting
                     shell archives.  The following values are allowed:

                        0  No (default), no post processing is done.

                        1  Shell archives, unpacking of multi-part shar(1) files only.

                        2  Yes, binary attachments and data will be decoded and saved.

              posted_articles_file
                     Keep  posted  articles in given file. If the given filename does not contain any expandable
                     strings it will be prefixed with ${TIN_HOMEDIR:-"$HOME"}/Mail/. If no filename is set  then
                     postings  will  not be saved. See the section "MAILING PIPING PRINTING REPOSTING AND SAVING
                     ARTICLES" for more information about the various expansion characters. Default is 'posted'.

              print_header
                     If ON, then the full article header is sent to the printer. Otherwise only the ''Subject:''
                     and ''From:'' fields are output. Default is OFF.

              printer
                     The printer program with options that is to be used  to  print  articles.  The  default  is
                     lpr(1)  for  BSD  machines  and lp(1) for SysV machines. Printing from tin(1) may have been
                     disabled by the System Administrator.

              process_only_unread
                     If ON only save/print/pipe/mail unread articles (tagged  articles  excepted).   Default  is
                     OFF.

              prompt_followupto
                     If ON show empty ''Followup-To:'' header when editing an article.  Default is OFF.

              quote_chars
                     The  character used in quoting included text to article followups and mail replies. The '_'
                     character represents a blank character and is replaced with ' ' when read, %I  is  replaced
                     by  author's  initials.  If the article has multiple addresses only the first is evaluated.
                     Default is '>_'.

              quote_style
                     This bit coded integer value controls how articles are to be quoted when  following  up  or
                     replying  to  them.  Any  of  the  following options can be combined by adding all relevant
                     values. Default is 5, which means that quote characters are compressed and empty lines  are
                     quoted.

                        0  Nothing special Non empty lines are quoted.

                        1  Compress  quotes  Compress quote characters together when quoting multiple times (for
                           example, '> > >' will be turned into '>>>'). This option is on by default.

                        2  Quote Signatures This  option  is  off  by  default.  Signatures  are  always  quoted
                           regardless  of  this option when you are viewing an article in raw mode PageToggleRaw
                           ('^H') and followup or reply to it. Signatures are never quoted  regardless  of  this
                           option when show_signatures is off.

                        4  Quote empty lines This option is on by default.

              quote_regex
                     A  regular  expression  that  will be applied when reading articles. All matching lines are
                     shown in col_quote. If quote_regex is blank, then tin(1) uses a built-in default.

              quote_regex2
                     A regular expression that will be applied when reading articles.  All  matching  lines  are
                     shown in col_quote2. If quote_regex2 is blank, then tin(1) uses a built-in default.

              quote_regex3
                     A  regular  expression  that  will be applied when reading articles. All matching lines are
                     shown in col_quote3. If quote_regex3 is blank, then tin(1) uses a built-in default.

              recent_time
                     If set to 0, this feature is deactivated, otherwise it means the number of days. Default is
                     2.

              render_bidi
                     If ON tin(1) does the rendering of bi-directional text. If OFF tin(1) leaves the  rendering
                     of bi-directional text to the terminal. Default is OFF.

              reread_active_file_secs
                     The  news  ${TIN_LIBDIR:-NEWSLIBDIR}"/"${TIN_ACTIVEFILE:-active}  file is reread at regular
                     intervals to show if any new news has arrived. Default is 1200.  Setting  this  to  0  will
                     disable this feature.

              savedir
                     Directory where articles/threads are saved. Default is ${TIN_HOMEDIR:-"$HOME"}/News.

              score_limit_kill
                     If the score of an article is below or equal this value the article gets marked as killed.

              score_limit_select
                     If the score of an article is above or equal this value the article gets marked as hot.

              score_kill
                     Score of an article which should be killed, this must be <= score_limit_kill.

              score_select
                     Score of an article which should be marked hot, this must be >= score_limit_select.

              scroll_lines
                     The  number  of lines that will be scrolled up/down in the article pager when using cursor-
                     up/down. The default is 1 (line-by-line). Set to 0 to get traditional  tin(1)  page-by-page
                     scrolling.  Set  to  -1  to get page-by-page scrolling where the top/bottom line is carried
                     over onto the next page.  This setting supersedes show_last_line_prev_page=ON. Set to -2 to
                     get half-page scrolling. This setting supersedes full_page_scroll=OFF.

              select_format
                     The format string  used  for  the  Selection  level.  Default  is  "%f %n %U  %G  %d".  The
                     following substitutions are supported:
                        %G group name
                        %U unread count
                        %d description
                        %f group flag
                        %n current group number
                        %% %

              sort_function
                     Function used for sorting articles. Default is 0.

                        0  Use qsort(3) for sorting.

                        1  Use  heapsort(3)  for sorting. This might be faster in large groups with long threads
                           (somewhat presorted data).

              show_author
                     Which information about the author should be shown. Default is 2, authors full name.

                        0  None, only the ''Subject:'' line will be displayed.

                        1  Address, ''Subject:'' line & the address part of the ''From:'' line are displayed.

                        2  Full Name, ''Subject:'' line & the authors full name part of the ''From:''  line  are
                           displayed (default).

                        3  Address and Name, ''Subject:'' line & all of the ''From:'' line are displayed.

              show_art_score
                     If  ON  show  article  score in the lower left corner when displaying articles.  Default is
                     OFF. See also col_score_neg and col_score_pos.

              show_description
                     If ON show a short group description text after  newsgroup  name  at  the  group  selection
                     level.  The  ''-d''  command-line flag will override the setting and turn descriptions off.
                     The text used is taken from the ${TIN_LIBDIR:-NEWSLIBDIR}/newsgroups file and if  supported
                     (requires     tin(1)     to     be    built    with    mh-mail-handling    support)    from
                     ${TIN_HOMEDIR:-"$HOME"}/.tin/mailgroups for mailgroups. Default is ON.

              show_help_mail_sign
                     Allows you to select whether tin(1) shows a help indication, a new mail  indication,  both,
                     or neither in the various level titles.  Default is 3.

                        0  Don't show help or mail sign.

                        1  Show only help sign.

                        2  Show  only  mail  sign if new mail, show only the mail sign, and only if new mail has
                           arrived.

                        3  Show mail if new mail else help s., show mail sign if new mail has arrived  otherwise
                           show help sign.

              show_only_unread_arts
                     If ON show only new/unread articles otherwise show all articles.  Default is ON.

              show_only_unread_groups
                     If ON show only subscribed groups that contain unread articles. Default is OFF.

              show_signatures
                     If OFF don't show signatures when displaying articles. Default is ON.

              sigdashes
                     If ON prepend the signature with sigdashes. Default is ON.

              sigfile
                     The path that specifies the signature file to use when posting, following up to or replying
                     to  an  article.  If  the path is a directory then the signature will be randomly generated
                     from files that are in the specified directory. If a file named  .sigfixed  does  exist  in
                     that dir or ${TIN_HOMEDIR:-"$HOME"}/.sigfixed does exist it will be prepended to the chosen
                     signature  (first match counts). If the path starts with a ! the program the path points to
                     will be executed to generate a signature. In order to pass the group name to  the  program,
                     %G  can  be  specified.  This will be replaced by the name of the current newsgroup. --none
                     will  suppress  any  signature.  Default   is   ${TIN_HOMEDIR:-"$HOME"}/.Sig.    See   also
                     ${TIN_HOMEDIR:-"$HOME"}/.sigfixed.

              signature_repost
                     If ON add signature to reposted articles. Default is ON.

              slashes_regex
                     A  regular  expression  that  will be applied when reading articles. All matching words are
                     shown in col_markslash or mono_markslash. If slashes_regex is blank,  then  tin(1)  uses  a
                     built-in default.

              sort_article_type
                     This  specifies  how  articles should be sorted. Sort by ascending Date (6) is the default.
                     The following sort types are allowed:

                        0  Nothing, don't sort articles.

                        1  Subject: (descending), sort articles by ''Subject:'' field descending.

                        2  Subject: (ascending), sort articles by ''Subject:'' field ascending.

                        3  From: (descending), sort articles by ''From:'' field descending.

                        4  From: (ascending), sort articles by ''From:'' field ascending.

                        5  Date: (descending), sort articles by ''Date:'' field descending.

                        6  Date: (ascending), sort articles by ''Date:'' field ascending (default).

                        7  Score (descending), sort articles by filtering score descending.

                        8  Score (ascending), sort articles by filtering score ascending.

                        9  Lines: (descending), sort articles by ''Lines:'' field descending.

                        10 Lines: (ascending), sort articles by ''Lines:'' field ascending.

              sort_threads_type
                     This specifies how threads will be sorted. Sort by descending Score (1) is the default. The
                     following sort types are allowed:

                        0  Nothing, don't sort threads.

                        1  Score (descending), sort threads by filtering score descending (default).

                        2  Score (ascending), sort threads by filtering score ascending.

                        3  Last posting date (descending), sort threads by date of last posting descending.

                        4  Last posting date (ascending), sort threads by date of last posting ascending.

              spamtrap_warning_addresses
                     Set this option to a list of comma-separated strings to be warned if you are replying to an
                     article by mail where the e-mail address contains one of these  strings.  The  matching  is
                     case-insensitive. Example:

                     spam,delete,remove

              stars_regex
                     A  regular  expression  that  will be applied when reading articles. All matching words are
                     shown in col_markstar or mono_markstar. If stars_regex is blank, then tin(1) uses a  built-
                     in default.

              strip_blanks
                     Strips  the blanks from the end of each line therefore speeding up the display when reading
                     on a slow terminal or via modem. Default is ON.

              strip_bogus
                     Bogus groups are groups that are present in your ${TIN_HOMEDIR:-"$HOME"}/.newsrc file  that
                     no  longer  exist on the news server. There are 3 options. 0 means do nothing & always keep
                     bogus groups.  1 means bogus groups will be permanently removed. 2 means that bogus  groups
                     will  appear  on  the  Group  Selection  Menu,  prefixed  with  a  'D'.  This allows you to
                     unsubscribe from them as and when you wish. Default is 0 (Always Keep).

              strip_newsrc
                     If   ON,   then   unsubscribed   groups   will   be   permanently   removed    from    your
                     ${TIN_HOMEDIR:-"$HOME"}/.newsrc file. Default is OFF.

              strip_re_regex
                     A  regular  expression to find Subject prefixes like "Re:" to remove.  If strip_re_regex is
                     blank, then tin(1) uses a built-in default.

              strip_was_regex
                     A regular expression to find Subject suffixes like "(was:" to remove.   If  strip_was_regex
                     is blank, then tin(1) uses a built-in default.

              strokes_regex
                     A  regular  expression  that  will be applied when reading articles. All matching words are
                     shown in col_markstroke or mono_markstroke.  If strokes_regex is blank, then tin(1) uses  a
                     built-in default.

              tex2iso_conv
                     Decode  German  style  TeX  umlaut codes to ISO If ON, show "a as Umlaut-a, etc. Default is
                     OFF. This behavior can also be toggled in the article viewer via PageToggleTex2iso ('"').

              thread_articles
                     Defines which threading method to use. The choices are:

                        0  Don't thread

                        1  Thread on Subject only

                        2  Thread on References only

                        3  Thread on References then Subject (default)

                        4  Thread multipart articles on Subject

                        5  Thread on Percentage Match of the Subjects
              It's also possible to set the threading type on a per group basis by setting the  group  attribute
              variable thread_articles to 0 – 5 in the file ${TIN_HOMEDIR:-"$HOME"}/.tin/attributes.

              thread_format
                     The  format  string  used  for  the  Thread  level.  Default  is "%n %m  [%L]  %T  %F". The
                     following substitutions are supported:
                        %D    date
                        %F    from, name and/or address
                        %I    initials
                        %L    line count
                        %M    message-id
                        %S    score
                        %T    thread tree
                        %m    article marks
                        %n    current article number
                        %%    %

              thread_perc
                     Defines how close the subjects must match while threading by Percentage Match  for  threads
                     to  be considered part of a single thread. This value is in the range 0 to 100. The default
                     is 75.

              thread_catchup_on_exit
                     If ON catchup group/thread when leaving with the left arrow key. Default is ON.

              thread_score
                     How the total score of a thread is computed. Default  is  0,  the  maximum  score  in  this
                     thread.

                        0  Max, the maximum score in this thread.

                        1  Sum, the sum of all scores in this thread.

                        2  Average, the average score in this thread.

              tls_ca_cert_file
                     The  name  of  file  containing  all  trusted  CA  certificates  used  for NNTPS (RFC 8143)
                     connections. If left empty the system default will be used.

              translit
                     If ON append //TRANSLIT to the first argument of iconv_open(3) to  enable  transliteration.
                     This  means that when a character cannot be represented in the target character set, it can
                     be approximated through one or several similarly looking characters. On systems where  this
                     extension doesn't exist, this option is disabled. Default is OFF.

              trim_article_body
                     Allows  you  to select how tin(1) treats blank lines in article bodies.  Default is 0. This
                     option does not affect lines within verbatim blocks and is applied before hideline_regex.

                        0  Don't trim article body, do nothing.

                        1  Skip leading blank lines.

                        2  Skip trailing blank lines.

                        3  Skip leading and trailing blank l., skip leading and trailing blank lines.

                        4  Compact multiple between text, replace multiple blank lines between text blocks  with
                           one blank line.

                        5  Compact multiple and skip leading, 4 + 1

                        6  Compact multiple and skip trailing, 4 + 2

                        7  Compact mltpl., skip lead. & trai., 4 + 3

              suppress_soft_hyphens
                     If  ON  remove  soft  hyphens  (U+00AD)  from non verbatim blocks when displaying articles.
                     Default is OFF.

              underscores_regex
                     A regular expression that will be applied when reading articles.  All  matching  words  are
                     shown  in  col_markdash or mono_markdash. If underscores_regex is blank, then tin(1) uses a
                     built-in default.

              unlink_article
                     If ON remove ${TIN_HOMEDIR:-"$HOME"}/.article after posting. Default is ON.

              url_handler
                     The program that will be run when launching URLs in the article  viewer  using  PageViewUrl
                     ('U'). The actual URL will be appended.  Default is url_handler.pl.

              url_highlight
                     Enable highlighting URLs in message body. Default is ON.

              use_color
                     If enabled tin(1) uses ANSI-colors. Default is OFF.

              use_keypad
                     Use scroll keys on keypad. Default is OFF.

              use_mouse
                     Allows the mouse button support in an xterm(1x) to be enabled/disabled.  Default is OFF.

              use_slrnface
                     If enabled slrnface(1) will be used to interpret the ''X-Face:'' header. For this option to
                     have  any  effect,  tin(1)  must be running in an xterm(1x) and slrnface(1) must be in your
                     $PATH. Default is OFF.

              utf8_graphics
                     If ON use UTF-8  characters  for  indicator  ('→'),  thread/attachment  tree  and  ellipsis
                     ('...'). Default is OFF.

              verbatim_begin_regex
                     A regular expression that tin(1) will use to find the begin of a verbatim block. Default is
                     #v+

              verbatim_end_regex
                     A  regular  expression that tin(1) will use to find the end of a verbatim block. Default is

                     #v-
              verbatim_handling
                     Allows you to select how tin(1) treats verbatim blocks in article bodies.  Default is 1.

                        0  Don't detect verbatim blocks. Do nothing.

                        1  Detect and show verbatim blocks. Detect and show verbatim blocks, including begin and
                           end marks.

                        2  Detect, hide begin and end marks. Detect and show verbatim blocks, hide begin and end
                           marks.

                        3  Don't show verbatim blocks. Detect verbatim blocks and hide them completely.

              wildcard
                     Allows you to select how tin(1) matches strings. The default is 0 and uses  the  wildmat(3)
                     notation,  which  is how this has traditionally been handled.  Setting this to 1 allows you
                     to use perl(1) compatible regular expressions pcre(3) or pcre2(3).  (see also perlre(1) and
                     pcrepattern(3) or pcre2pattern(3)).  You will probably want to update your filter  file  if
                     you  use  this  regularly.  NB: Newsgroup names will always be matched using the wildmat(3)
                     notation.

              word_h_display_marks
                     Should the leading and ending stars, slashes, strokes and dashes also  be  displayed,  even
                     when they are highlighting marks?

                        0  no

                        1  yes, display mark

                        2  print a space instead

              word_highlight
                     Enable  word highlighting. See word_h_display_marks for the options available. If use_color
                     is  enabled  the  colors  specified  in  col_markdash,  col_markslash,   col_markstar   and
                     col_markstroke  are  used  for word highlighting else the character attributes specified in
                     mono_markdash, mono_markslash, mono_markstar and mono_markstroke are used. Default is ON.

              wrap_column
                     Sets the column at which a displayed article body should be  wrapped.   If  this  value  is
                     equal  to  0,  it defaults to the current screen width.  If this value is greater than your
                     current screen width and dont_break_words is unset the part off-screen  is  not  displayed.
                     Thus  setting  this option to a large value can be used to disable wrapping.  If this value
                     is negative the wrap margin is the current screen width plus the given value  (as  long  as
                     the  result  is  still  positive, otherwise it will fall back to the current screen width).
                     Default is 0, wrapping at the current screen width.

              wrap_on_next_unread
                     If enabled a search for the next unread article will wrap around all articles to find  also
                     previous  unread  articles.  If  disabled  the  search stops at the end of the thread list.
                     Default is ON.

              xpost_quote_format
                     Format is the same as for news_quote_format, this is used when answering to a  crossposting
                     to several groups with no ''Followup-To:'' set.

       /etc/tin/tin.defaults

              Yet  another  global  configuration  file  with  "variable=value"  pairs. This one is for the more
              general options which usually  can't  be  controlled  via  ${TIN_LIBDIR:-NEWSLIBDIR}/tinrc  and/or
              ${TIN_HOMEDIR:-"$HOME"}/.tin/tinrc   like   resetting  (to  override  the  built-in  default)  the
              newslibdir.

              domainname
                     Sets a global domain name used in From lines

              organization
                     Defines the name of your organization. $ORGANIZATION overrides any specified value.

              newslibdir
                     Defines the default place for some configuration files, common  values  are  /usr/lib/news,
                     /var/lib/news, /usr/local/lib/news or /news/db. $TIN_LIBDIR overrides any specified value.

              bugaddress
                     Defines  the  email  address to which users can send bug reports using a built-in function.
                     The default points to a developers mailing list located  at  tin.org.  You  might  want  to
                     change  this  address  to  one  of  your local administration if you want to deal with your
                     lusers problems on your own.

              inewsdir
                     Defines the directory containing the inews(1) executable.

              mm_charset
                     Default charset to be used in MIME's ''Content-Type:'' header.  $MM_CHARSET  overrides  any
                     specified value.

              post_mime_encoding
                     Default encoding scheme used in MIME articles. 8bit might be the best value.

              mail_mime_encoding
                     Default encoding scheme used in MIME letters. quoted-printable is a good choice here.

              disable_gnksa_domain_check
                     Allow  unregistered  top  level  domains.  As  the list of valid TLDs is no longer actively
                     maintained the default was changed to ON starting with tin(1) version 2.1.5

              disable_sender
                     Don't generate a ''Sender:'' header. This has an  effect  only  if  inews_prog  is  set  to
                     --internal.

              spooldir
                     Base  of  your  newsspool (Bnews, Cnews and INN traditional spool style), common values are
                     /var/spool/news,  /usr/spool/news,  /news/spool.   $TIN_SPOOLDIR  overrides  any  specified
                     value.

              overviewdir
                     Base  of  your  NOV  database  newsoverview(5)  (tradspool  style; might be the same dir as
                     spooldir), common  values  are  /var/spool/overview,  /usr/spool/overview,  /news/overview.
                     $TIN_NOVROOTDIR overrides any specified value.

              overviewfile
                     Name  of a single overview file, common values are .overview or over.view. $TIN_NOVFILENAME
                     overrides any specified value.

              overviewfmtfile
                     Full pathname  of  your  newssystem's  overview.fmt  file;  usually  the  file  resides  in
                     newslibdir  and  is  named  overview.fmt,  so  you only have to change this setting if your
                     configuration differs.

              activefile
                     Full pathname of your newssystem's active file; usually the file resides in newslibdir  and
                     is  named  active,  so  you only have to change this setting if your configuration differs.
                     $TIN_ACTIVEFILE overrides any specified value.

              activetimesfile
                     Full pathname  of  your  newssystem's  active.times  file;  usually  the  file  resides  in
                     newslibdir  and  is  named  active.times,  so  you only have to change this setting if your
                     configuration differs.

              newsgroupsfile
                     Full pathname of your newssystem's newsgroups file; usually the file resides in  newslibdir
                     and  is  named  newsgroups,  so  you only have to change this setting if your configuration
                     differs.

              subscriptionsfile
                     Full pathname of  your  newssystem's  subscriptions  file;  usually  the  file  resides  in
                     newslibdir  and  is  named  subscriptions,  so you only have to change this setting if your
                     configuration differs.

       /usr/local/share/locale/$LC_MESSAGES/LC_MESSAGES/tin.mo

              translation into language specified in $LC_ALL, $LC_MESSAGES or $LANG

       ${TIN_LIBDIR:-NEWSLIBDIR}"/"${TIN_ACTIVEFILE:-active}

              This file lists the newsgroups that the local site receives. Each newsgroup should be listed  only
              once.  Each  line  specifies one group; within each newsgroup, articles are assigned unique names,
              which are monotonically increasing numbers.

              If an article is posted to newsgroups not mentioned in this file, those  newsgroups  are  ignored.
              If no valid newsgroups are specified, the article is rejected.

              Each line consists of four space-separated fields "name highmark lowmark flags".

              name   is the name of the newsgroup

              highmark
                     is the highest article number that has been used in that newsgroup

              lowmark
                     is  the  lowest  article number in the group; this number is not guaranteed to be accurate,
                     and should only be taken to be a hint. Note that because of  article  cancellations,  there
                     may  be  gaps  in  the numbering sequence. If the lowest article number is greater than the
                     highest article number, then there are no articles in the newsgroup.

              flags  can be one of those

                     y      local postings are allowed

                     n      no local postings are allowed, only remote ones

                     m      the group is moderated and all postings must be approved

                     j      articles in this group are not kept, but only passed on

                     x      articles cannot be posted to this newsgroup

                     =foo.bar
                            articles are locally filed into the ''foo.bar'' group

              tin(1) only tries to read the file if you read directly from the local spool, if you read news via
              NNTP, tin(1) uses the LIST (RFC 3977) or LIST COUNTS (RFC 6048) command instead.

       ${TIN_LIBDIR:-NEWSLIBDIR}/active.times

              This file provides a chronological record of when newsgroups are created. It is  normally  updated
              by  the  local  news  server (e.g., innd(8)) whenever a new group is created. Each line consist of
              three space-separated fields "name time creator".

              name   is the name of the newsgroup

              time   is the time when the group was created, expressed as the number of seconds since the Epoch.

              creator
                     is the electronic mail address of the person who created the group.

              tin(1) only tries to read the file if you read directly from the local spool, if you read news via
              NNTP, tin(1) uses the NEWGROUPS (RFC 3977) command instead.

       ${TIN_LIBDIR:-NEWSLIBDIR}/newsgroups

              This file provides short descriptions of each newsgroup. It is normally updated by the local  news
              server  (e.g.,  innd(8))  whenever  a new group is created. Each line consist of two tab-separated
              fields "group.name          one-line description".

              group.name
                     is the name of the newsgroup

              one-line description
                     is a short single-line description of the group

              tin(1) only tries to read the file if you read directly from the local spool, if you read news via
              NNTP, tin(1) uses the LIST NEWSGROUPS (RFC 3977) command instead.

       ${TIN_LIBDIR:-NEWSLIBDIR}/organization

              This file might  hold  a  default  organization  to  be  used  in  the  ''Organization:''  header.
              $ORGANIZATION has a higher priority if set.

       ${TIN_LIBDIR:-NEWSLIBDIR}/overview.fmt

              This  file  specifies  the  organization of the news overview database (see also newsoverview(5)).
              The order of lines in this file is important; it determines the order in  which  the  fields  will
              appear  in the database. See also overview.fmt(5).  tin(1) only tries to read the file if you read
              directly from the local spool, if you read news  via  NNTP,  tin(1)  uses  the  LIST  OVERVIEW.FMT
              (RFC 3977) command instead.

       ${TIN_LIBDIR:-NEWSLIBDIR}/subscriptions

              This file contains a list of newsgroups — one per line — which the client should subscribe to when
              the  user  has  no ${TIN_HOMEDIR:-"$HOME"}/.newsrc for the news server.  tin(1) only tries to read
              the file if you read directly from the local spool, if you read news via  NNTP,  tin(1)  uses  the
              LIST SUBSCRIPTIONS (RFC 6048) command instead.

SEE ALSO

       inews(1),  ispell(1),  lp(1),  lpr(1),  metamail(1), mutt(1), perl(1), perlre(1), pgp(1), rn(1), shar(1),
       slrnface(1), tin(1), xterm(1x), heapsort(3), iconv(3), iconv_open(3), nl_langinfo(3), pcre(3),  pcre2(3),
       pcrepattern(3),  pcre2pattern(3),  qsort(3),  strftime(3),  system(3),  active(5),  mailcap(5),  mbox(5),
       mmdf(5), newsoverview(5), overview.fmt(5), innd(8), RFC 1524, RFC 1952, RFC 2045,  RFC  2046,  RFC  2047,
       RFC  2231,  RFC  2980,  RFC  3977,  RFC 4155, RFC 4643, RFC 5198, RFC 5322, RFC 5536, RFC 5537, RFC 6048,
       RFC 6838, RFC 8143, RFC 8315

2.6.5                                              2025-02-17                                             TIN(5)