plucky (1) postconf.1.gz

Provided by: postfix_3.9.1-10ubuntu1_amd64 bug

NAME

       postconf - Postfix configuration utility

SYNOPSIS

   Managing main.cf:

       postconf [-dfhHnopqvx] [-c config_dir] [-C class,...] [parameter ...]

       postconf [-epv] [-c config_dir] parameter=value ...

       postconf -# [-pv] [-c config_dir] parameter ...

       postconf -X [-pv] [-c config_dir] parameter ...

   Managing master.cf service entries:

       postconf -M [-foqvx] [-c config_dir] [service[/type] ...]

       postconf -M [-ev] [-c config_dir] service/type=value ...

       postconf -M# [-v] [-c config_dir] service/type ...

       postconf -MX [-v] [-c config_dir] service/type ...

   Managing master.cf service fields:

       postconf -F [-fhHoqvx] [-c config_dir] [service[/type[/field]] ...]

       postconf -F [-ev] [-c config_dir] service/type/field=value ...

   Managing master.cf service parameters:

       postconf -P [-fhHoqvx] [-c config_dir] [service[/type[/parameter]] ...]

       postconf -P [-ev] [-c config_dir] service/type/parameter=value ...

       postconf -PX [-v] [-c config_dir] service/type/parameter ...

   Managing bounce message templates:

       postconf -b [-v] [-c config_dir] [template_file]

       postconf -t [-v] [-c config_dir] [template_file]

   Managing TLS features:

       postconf -T mode [-v] [-c config_dir]

   Managing other configuration:

       postconf -a|-A|-l|-m [-v] [-c config_dir]

DESCRIPTION

       By  default,  the  postconf(1) command displays the values of main.cf configuration parameters, and warns
       about possible mis-typed parameter names (Postfix 2.9 and later).  The command can  also  change  main.cf
       configuration parameter values, or display other configuration information about the Postfix mail system.

       Options:

       -a     List  the  available  SASL plug-in types for the Postfix SMTP server. The plug-in type is selected
              with the smtpd_sasl_type configuration parameter by specifying one of the names listed below.

              cyrus  This server plug-in is available when Postfix is built with Cyrus SASL support.

              dovecot
                     This server plug-in uses the Dovecot authentication server, and is available  when  Postfix
                     is built with any form of SASL support.

              This feature is available with Postfix 2.3 and later.

       -A     List  the  available SASL plug-in types for the Postfix SMTP client.  The plug-in type is selected
              with the smtp_sasl_type or lmtp_sasl_type configuration parameters by specifying one of the  names
              listed below.

              cyrus  This client plug-in is available when Postfix is built with Cyrus SASL support.

              This feature is available with Postfix 2.3 and later.

       -b [template_file]
              Display  the  message  text  that  appears  at the beginning of delivery status notification (DSN)
              messages, expanding $name expressions with actual values as described in bounce(5).

              To override the bounce_template_file parameter setting, specify a template file name at the end of
              the "postconf -b" command line. Specify an empty file name to display built-in templates (in shell
              language: "").

              This feature is available with Postfix 2.3 and later.

       -c config_dir
              The main.cf configuration file is in the named directory  instead  of  the  default  configuration
              directory.

       -C class,...
              When displaying main.cf parameters, select only parameters from the specified class(es):

              builtin
                     Parameters with built-in names.

              service
                     Parameters  with  service-defined  names  (the  first  field  of  a  master.cf entry plus a
                     Postfix-defined suffix).

              user   Parameters with user-defined names.

              all    All the above classes.

              The default is as if "-C all" is specified.

              This feature is available with Postfix 2.9 and later.

       -d     Print main.cf default parameter settings instead of actual settings.  Specify  -df  to  fold  long
              lines for human readability (Postfix 2.9 and later).

       -e     Edit  the main.cf configuration file, and update parameter settings with the "name=value" pairs on
              the postconf(1) command line.

              With -M, edit the master.cf configuration file, and replace one or more service entries  with  new
              values as specified with "service/type=value" on the postconf(1) command line.

              With  -F,  edit  the master.cf configuration file, and replace one or more service fields with new
              values as specified with "service/type/field=value" on the postconf(1)  command  line.  Currently,
              the  "command" field contains the command name and command arguments.  This may change in the near
              future, so that the "command" field  contains  only  the  command  name,  and  a  new  "arguments"
              pseudofield contains the command arguments.

              With  -P,  edit  the master.cf configuration file, and add or update one or more service parameter
              settings   (-o    parameter=value    settings)    with    new    values    as    specified    with
              "service/type/parameter=value" on the postconf(1) command line.

              In  all  cases  the file is copied to a temporary file then renamed into place.  Specify quotes to
              protect special characters and whitespace on the postconf(1) command line.

              The -e option is no longer needed with Postfix version 2.8 and later, as it is assumed whenever  a
              value is specified (empty or non-empty).

       -f     Fold  long  lines  when  printing  main.cf  or  master.cf  configuration  file  entries, for human
              readability.

              This feature is available with Postfix 2.9 and later.

       -F     Show master.cf per-entry field settings (by default all services and  all  fields),  formatted  as
              "service/type/field=value", one per line. Specify -Ff to fold long lines.

              Specify  one  or  more "service/type/field" instances on the postconf(1) command line to limit the
              output to fields of interest.  Trailing parameter name or service type  fields  that  are  omitted
              will be handled as "*" wildcard fields.

              This feature is available with Postfix 2.11 and later.

       -h     Show parameter or attribute values without the "name = " label that normally precedes the value.

       -H     Show parameter or attribute names without the " = value" that normally follows the name.

              This feature is available with Postfix 3.1 and later.

       -l     List the names of all supported mailbox locking methods.  Postfix supports the following methods:

              flock  A  kernel-based  advisory  locking  method  for  local  files only.  This locking method is
                     available on systems with a BSD compatible library.

              fcntl  A kernel-based advisory locking method for local and remote files.

              dotlock
                     An application-level locking method. An application locks a file named filename by creating
                     a  file  named  filename.lock.  The application is expected to remove its own lock file, as
                     well as stale lock files that were left behind after abnormal program termination.

       -m     List the names of all supported lookup table types. In Postfix configuration files, lookup  tables
              are  specified  as  type:name,  where type is one of the types listed below. The table name syntax
              depends on the lookup table type as described in the DATABASE_README document.

              btree  A sorted, balanced tree structure.  Available on  systems  with  support  for  Berkeley  DB
                     databases.

              cdb    A  read-optimized  structure with no support for incremental updates.  Available on systems
                     with support for CDB databases.

                     This feature is available with Postfix 2.2 and later.

              cidr   A table that associates values with Classless Inter-Domain Routing (CIDR) patterns. This is
                     described in cidr_table(5).

                     This feature is available with Postfix 2.2 and later.

              dbm    An  indexed  file  type  based  on  hashing.   Available  on  systems  with support for DBM
                     databases.

              environ
                     The UNIX process environment array. The lookup key is the environment  variable  name;  the
                     table  name  is  ignored.  Originally implemented for testing, someone may find this useful
                     someday.

              fail   A table that reliably fails all requests. The lookup table name is used for  logging.  This
                     table exists to simplify Postfix error tests.

                     This feature is available with Postfix 2.9 and later.

              hash   An  indexed  file type based on hashing.  Available on systems with support for Berkeley DB
                     databases.

              inline (read-only)
                     A non-shared, in-memory lookup table. Example: "inline:{  key=value,  {  key  =  text  with
                     whitespace  or  comma  }}".  Key-value  pairs  are separated by whitespace or comma; with a
                     key-value pair inside "{}", whitespace is ignored after the opening  "{",  around  the  "="
                     between  key  and  value,  and  before the closing "}". Inline tables eliminate the need to
                     create a database file for just a few fixed elements.  See also the static: map type.

                     This feature is available with Postfix 3.0 and later.

              internal
                     A non-shared, in-memory hash table. Its content are lost when a process terminates.

              lmdb   OpenLDAP LMDB database (a memory-mapped,  persistent  file).   Available  on  systems  with
                     support for LMDB databases.  This is described in lmdb_table(5).

                     This feature is available with Postfix 2.11 and later.

              ldap (read-only)
                     LDAP database client. This is described in ldap_table(5).

              memcache
                     Memcache database client. This is described in memcache_table(5).

                     This feature is available with Postfix 2.9 and later.

              mongodb
                     MongoDB database client. This is described in mongodb_table(5).

                     This feature is available with Postfix 3.9 and later.

              mysql (read-only)
                     MySQL  database  client.   Available  on systems with support for MySQL databases.  This is
                     described in mysql_table(5).

              pcre (read-only)
                     A lookup table based on Perl Compatible Regular Expressions.  The file format is  described
                     in pcre_table(5).

              pgsql (read-only)
                     PostgreSQL database client. This is described in pgsql_table(5).

                     This feature is available with Postfix 2.1 and later.

              pipemap (read-only)
                     A  lookup  table  that  constructs a pipeline of tables.  Example: "pipemap:{type_1:name_1,
                     ..., type_n:name_n}".  Each "pipemap:" query is given to  the  first  table.   Each  lookup
                     result  becomes  the  query for the next table in the pipeline, and the last table produces
                     the final result.  When any table lookup produces  no  result,  the  pipeline  produces  no
                     result.  The  first  and  last characters of the "pipemap:" table name must be "{" and "}".
                     Within these, individual maps are separated with comma or whitespace.

                     This feature is available with Postfix 3.0 and later.

              proxy  Postfix proxymap(8) client for shared access to Postfix databases. The table name syntax is
                     type:name.

                     This feature is available with Postfix 2.0 and later.

              randmap (read-only)
                     An  in-memory  table  that  performs  random  selection.  Example: "randmap:{result_1, ...,
                     result_n}". Each table query returns a random choice from the specified results. The  first
                     and  last  characters  of  the  "randmap:"  table  name must be "{" and "}".  Within these,
                     individual results are separated with comma or whitespace. To give a specific  result  more
                     weight, specify it multiple times.

                     This feature is available with Postfix 3.0 and later.

              regexp (read-only)
                     A   lookup   table   based  on  regular  expressions.  The  file  format  is  described  in
                     regexp_table(5).

              sdbm   An indexed file type based  on  hashing.   Available  on  systems  with  support  for  SDBM
                     databases.

                     This feature is available with Postfix 2.2 and later.

              socketmap (read-only)
                     Sendmail-style socketmap client. The table name is inet:host:port:name for a TCP/IP server,
                     or unix:pathname:name for a UNIX-domain server. This is described in socketmap_table(5).

                     This feature is available with Postfix 2.10 and later.

              sqlite (read-only)
                     SQLite database. This is described in sqlite_table(5).

                     This feature is available with Postfix 2.8 and later.

              static (read-only)
                     A table that always returns its name as lookup result. For  example,  static:foobar  always
                     returns  the string foobar as lookup result. Specify "static:{ text with whitespace }" when
                     the result contains whitespace; this form ignores whitespace  after  the  opening  "{"  and
                     before the closing "}". See also the inline: map.

                     The form "static:{text} is available with Postfix 3.0 and later.

              tcp (read-only)
                     TCP/IP client. The protocol is described in tcp_table(5).

              texthash (read-only)
                     Produces  similar  results as hash: files, except that you don't need to run the postmap(1)
                     command before you can use the file, and that it does not detect changes after the file  is
                     read.

                     This feature is available with Postfix 2.8 and later.

              unionmap (read-only)
                     A  table  that  sends  each query to multiple lookup tables and that concatenates all found
                     results, separated by comma.  The table name syntax is the same as for pipemap.

                     This feature is available with Postfix 3.0 and later.

              unix (read-only)
                     A limited view of the UNIX authentication database. The following tables are implemented:

                     unix:passwd.byname
                            The table is the UNIX password database. The key is a login name.  The result  is  a
                            password file entry in passwd(5) format.

                     unix:group.byname
                            The  table  is  the  UNIX  group database. The key is a group name.  The result is a
                            group file entry in group(5) format.

              Other table types may exist depending on how Postfix was built.

       -M     Show master.cf file contents instead of main.cf file contents.  Specify -Mf to fold long lines for
              human readability.

              Specify  zero or more arguments, each with a service-name or service-name/service-type pair, where
              service-name is the first field of a master.cf entry and service-type is one of (inet, unix, fifo,
              or pass).

              If  service-name  or  service-name/service-type  is specified, only the matching master.cf entries
              will be output. For example, "postconf -Mf smtp"  will  output  all  services  named  "smtp",  and
              "postconf  -Mf smtp/inet" will output only the smtp service that listens on the network.  Trailing
              service type fields that are omitted will be handled as "*" wildcard fields.

              This feature is available with Postfix 2.9 and later. The syntax was changed from  "name.type"  to
              "name/type", and "*" wildcard support was added with Postfix 2.11.

       -n     Show only configuration parameters that have explicit name=value settings in main.cf.  Specify -nf
              to fold long lines for human readability (Postfix 2.9 and later). To  show  settings  that  differ
              from built-in defaults only, use the following bash syntax:
                  LANG=C comm -23 <(postconf -n) <(postconf -d)
              Replace "-23" with "-12" to show settings that duplicate built-in defaults.

       -o name=value
              Override main.cf parameter settings.  This lets you see the effect changing a parameter would have
              when it is used in other configuration parameters, e.g.:
                  postconf -x -o stress=yes

              This feature is available with Postfix 2.10 and later.

       -p     Show main.cf parameter settings. This is the default.

              This feature is available with Postfix 2.11 and later.

       -P     Show master.cf service parameter settings (by default all services and all parameters),  formatted
              as "service/type/parameter=value", one per line.  Specify -Pf to fold long lines.

              Specify  one  or  more "service/type/parameter" instances on the postconf(1) command line to limit
              the output to parameters of interest.  Trailing parameter name or service  type  fields  that  are
              omitted will be handled as "*" wildcard fields.

              This feature is available with Postfix 2.11 and later.

       -q     Do not log warnings for deprecated or unused parameters.

              This feature is available with Postfix 3.9 and later.

       -t [template_file]
              Display the templates for text that appears at the beginning of delivery status notification (DSN)
              messages, without expanding $name expressions.

              To override the bounce_template_file parameter setting, specify a template file name at the end of
              the "postconf -t" command line. Specify an empty file name to display built-in templates (in shell
              language: "").

              This feature is available with Postfix 2.3 and later.

       -T mode
              If Postfix is compiled without TLS support, the -T option produces no output.   Otherwise,  if  an
              invalid  mode  is specified, the -T option reports an error and exits with a non-zero status code.
              The valid modes are:

              compile-version
                     Output the OpenSSL version that Postfix was compiled with (i.e. the OpenSSL  version  in  a
                     header file). The output format is the same as with the command "openssl version".

              run-version
                     Output the OpenSSL version that Postfix is linked with at runtime (i.e. the OpenSSL version
                     in a shared library).

              public-key-algorithms
                     Output the lower-case names of the supported public-key algorithms, one per-line.

              This feature is available with Postfix 3.1 and later.

       -v     Enable verbose logging for debugging purposes. Multiple -v options make the software  increasingly
              verbose.

       -x     Expand $name in main.cf or master.cf parameter values. The expansion is recursive.

              This feature is available with Postfix 2.10 and later.

       -X     Edit  the  main.cf  configuration file, and remove the parameters named on the postconf(1) command
              line.  Specify a list of parameter names, not "name=value" pairs.

              With -M, edit the master.cf configuration  file,  and  remove  one  or  more  service  entries  as
              specified with "service/type" on the postconf(1) command line.

              With  -P, edit the master.cf configuration file, and remove one or more service parameter settings
              (-o parameter=value settings)  as  specified  with  "service/type/parameter"  on  the  postconf(1)
              command line.

              In  all  cases  the file is copied to a temporary file then renamed into place.  Specify quotes to
              protect special characters on the postconf(1) command line.

              There is no postconf(1) command to perform the reverse operation.

              This feature is available with Postfix 2.10 and later.  Support for  -M  and  -P  was  added  with
              Postfix 2.11.

       -#     Edit  the  main.cf  configuration  file,  and  comment out the parameters named on the postconf(1)
              command line, so that those parameters  revert  to  their  default  values.   Specify  a  list  of
              parameter names, not "name=value" pairs.

              With  -M,  edit  the  master.cf configuration file, and comment out one or more service entries as
              specified with "service/type" on the postconf(1) command line.

              In all cases the file is copied to a temporary file then renamed into place.   Specify  quotes  to
              protect special characters on the postconf(1) command line.

              There is no postconf(1) command to perform the reverse operation.

              This feature is available with Postfix 2.6 and later. Support for -M was added with Postfix 2.11.

DIAGNOSTICS

       Problems are reported to the standard error stream.

ENVIRONMENT

       MAIL_CONFIG
              Directory with Postfix configuration files.

CONFIGURATION PARAMETERS

       The following main.cf parameters are especially relevant to this program.

       The text below provides only a parameter summary. See postconf(5) for more details including examples.

       config_directory (see 'postconf -d' output)
              The default location of the Postfix main.cf and master.cf configuration files.

       bounce_template_file (empty)
              Pathname of a configuration file with bounce message templates.

FILES

       /etc/postfix/main.cf, Postfix configuration parameters
       /etc/postfix/master.cf, Postfix master daemon configuration

SEE ALSO

       bounce(5), bounce template file format
       master(5), master.cf configuration file syntax
       postconf(5), main.cf configuration file syntax

README FILES

       Use "postconf readme_directory" or "postconf html_directory" to locate this information.
       DATABASE_README, Postfix lookup table overview

LICENSE

       The Secure Mailer license must be distributed with this software.

AUTHOR(S)

       Wietse Venema
       IBM T.J. Watson Research
       P.O. Box 704
       Yorktown Heights, NY 10598, USA

       Wietse Venema
       Google, Inc.
       111 8th Avenue
       New York, NY 10011, USA

                                                                                                     POSTCONF(1)