Provided by: nmh_1.3-1build1_amd64 bug


       inc - incorporate new mail


       inc [+folder] [-audit audit-file] [-noaudit] [-changecur | -nochangecur] [-form formfile]
            [-format string] [-file name] [-silent | -nosilent] [-truncate | -notruncate] [-width
            columns] [-host hostname] [-user username] [-pack file] [-nopack] [-proxy command]
            [-apop | -noapop] [-kpop] [-sasl] [-saslmech mechanism] [-snoop] [-version] [-help]


       Inc incorporates mail from the user's incoming mail drop into an nmh folder.

       You may specify which folder to use with +folder.  If no folder  is  specified,  then  inc
       will  use either the folder given by a (non-empty) “Inbox” entry in the user's profile, or
       the folder named “inbox”.  If the specified (or default) folder doesn't  exist,  the  user
       will be queried prior to its creation.

       When the new messages are incorporated into the folder, they are assigned numbers starting
       with the next highest number for the folder.   As  the  messages  are  processed,  a  scan
       listing of the new mail is produced.

       If  the  user's  profile  contains  a  “Msg-Protect:  nnn”  entry,  it will be used as the
       protection on the newly created messages, otherwise the nmh default of 0644 will be  used.
       For  all  subsequent operations on these messages, this initially assigned protection will
       be preserved.

       If the switch -audit audit-file is specified (usually as a default switch in the profile),
       then  inc  will  append  a  header line and a line per message to the end of the specified
       audit-file with the format:

            inc date
            <scan line for first message>
            <scan line for second message>

       This is useful for keeping track of volume and source of incoming mail.  Eventually, repl,
       forw,  comp,  and  dist  may  also  produce audits to this (or another) file, perhaps with
       “Message-Id” information to keep an exact correspondence history.  “Audit-file” will be in
       the user's nmh directory unless a full path is specified.

       Inc  will  incorporate  even  improperly  formatted  messages  into the user's nmh folder,
       inserting a blank line prior to the offending component and printing a comment identifying
       the bad message.

       In all cases, the user's mail drop will be zeroed, unless the -notruncate switch is given.

       If the profile entry “Unseen-Sequence” is present and non-empty, then inc will add each of
       the newly incorporated messages to each sequence named by the profile entry.  Inc will not
       zero each sequence prior to adding messages.

       The interpretation of the -form formatfile, -format string, and -width columns switches is
       the same as in scan.

       By using the -file name switch, one can direct inc to incorporate  messages  from  a  file
       other  than  the  user's maildrop.  Note that the name file will NOT be zeroed, unless the
       -truncate switch is given.

       If the environment variable $MAILDROP is set, then inc uses it  as  the  location  of  the
       user's  maildrop  instead  of  the  default  (the  -file name switch still overrides this,
       however).  If this environment variable is not set, then  inc  will  consult  the  profile
       entry  “MailDrop”  for  this  information.  If the value found is not absolute, then it is
       interpreted relative to the user's nmh directory.  If the value is  not  found,  then  inc
       will look in the standard system location for the user's maildrop.

       The  -silent  switch  directs  inc  to be quiet and not ask any questions at all.  This is
       useful for putting inc in the background and going on to other things.

   Using POP
       inc will normally check local mail drops for mail, as covered above.  But  if  the  option
       “pophost”  is  set  in  “mts.conf”,  or  if  the -host hostname switch is given, or if the
       $MAILHOST environment variable is set, then inc will query this POP service host for  mail
       to  incorporate.   If  $MAILHOST  is  set  and -host is specified as well, the commandline
       switch will override the environment variable.

       The default is for inc to assume that your account name on the POP server is the  same  as
       your current username.  To specify a different username, use the -user username switch.

       When  using  POP,  you will normally need to type the password for your account on the POP
       server, in order to retrieve your messages.  It is possible to automate  this  process  by
       creating  a  “.netrc”  file containing your login account information for this POP server.
       For each POP server, this file should have a line of  the  following  form.   Replace  the
       words mypopserver, mylogin, and mypassword with your own account information.

            machine mypopserver login mylogin password mypassword

       This “.netrc” file should be owned and readable only by you.

       If  passed  the -proxy command switch, inc will use the specified command to establish the
       connection to the POP server. The string %h in the command  will  be  substituted  by  the
       hostname to connect to.

       If  inc uses POP, then the -pack file switch is considered. If given, then inc simply uses
       the POP to packf the user's maildrop from the POP service host to the  named  file.   This
       switch is provided for those users who prefer to use msh to read their maildrops.

       For  debugging purposes, you may give the switch -snoop, which will allow you to watch the
       POP transaction take place between you and the POP server.

       If nmh has been compiled with APOP support, the -apop switch will cause inc  to  use  APOP
       rather  than  standard POP3 authentication.  Under APOP, a unique string (generally of the
       format <pid.timestamp@hostname> ) is announced by  the  POP  server.   Rather  than  `USER
       user',  `PASS password', inc sends `APOP user digest', where digest is the MD5 hash of the
       unique string followed by a `secret' shared by client and server,  essentially  equivalent
       to  the  user's  password (though an APOP-enabled POP3 server could have separate APOP and
       plain POP3 passwords for a single user).   -noapop  disables  APOP  in  cases  where  it'd
       otherwise be used.

       If  nmh  has  been  compiled  with  KPOP  support,  the -kpop switch will allow inc to use
       Kerberized POP rather than standard POP3 on a given invocation.  If  POPSERVICE  was  also
       #defined to "kpop", inc will be hardwired to always use KPOP.

       If  nmh  has been compiled with SASL support, the -sasl switch will enable the use of SASL
       authentication.  Depending on the SASL mechanism used,  this  may  require  an  additional
       password  prompt from the user (but the “.netrc” file can be used to store this password).
       The -saslmech switch can be used to select a particular SASL mechanism.

       If SASL authentication is successful, inc will attempt to negotiate a security  layer  for
       session  encryption.   Encrypted  traffic is labelled with `(encrypted)' and `(decrypted)'
       when viewing the POP transaction with the -snoop switch.


       $HOME/.mh_profile          The user profile
       /etc/nmh/mts.conf          nmh mts configuration file
       /var/mail/$USER            Location of mail drop


       Path:                To determine the user's nmh directory
       Alternate-Mailboxes: To determine the user's mailboxes
       Inbox:               To determine the inbox, default “inbox”
       Folder-Protect:      To set mode when creating a new folder
       Msg-Protect:         To set mode when creating a new message and audit-file
       Unseen-Sequence:     To name sequences denoting unseen messages


       mhmail(1), scan(1), mh-mail(5), post(8)


       `+folder' defaulted by “Inbox” above
       `-format' defaulted as described above
       `-truncate' if `-file name' not given, `-notruncate' otherwise
       `-width' defaulted to the width of the terminal


       The folder into which messages are being incorporated will become the current folder.  The
       first message incorporated will become the current message, unless the -nochangecur option
       is specified.  This leaves the context ready for a show of the first new message.


       The argument to the -format switch must be interpreted as a single token by the shell that
       invokes  inc.   Therefore,  one  must  usually  place  the  argument to this switch inside