POSTCONF(1) POSTCONF(1)

NAME
       postconf - Postfix configuration utility

SYNOPSIS
       ppoossttccoonnff [-ddhhmmllnnvv] [-cc configdir] [parameter ...]

       ppoossttccoonnff [-eevv] [-cc configdir] [parameter=value ...]

DESCRIPTION
       The  ppoossttccoonnff  command  prints the actual value of parameter (all known
       parameters by default) one parameter per line, changes  its  value,  or
       prints other information about the Postfix mail system.

       Options:

       -cc configdir
              The mmaaiinn..ccff configuration file is in the named directory instead
              of the default configuration directory.

       -dd     Print default parameter settings instead of actual settings.

       -ee     Edit the mmaaiinn..ccff configuration file. The file  is  copied  to  a
              temporary  file  then  renamed into place. Parameters and values
              are specified on the command line. Use quotes in order  to  pro-
              tect shell metacharacters and whitespace.

       -hh     Show  parameter values only, not the ``name = '' label that nor-
              mally precedes the value.

       -ll     List the names of all supported mailbox locking methods.   Post-
              fix supports the following methods:

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

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

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

       -mm     List the names of all  supported  lookup  table  types.  Postfix
              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.

              bbttrreeee  A  sorted,  balanced  tree  structure.  This is available
                     only on systems with support for Berkeley DB databases.

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

              ddbbmm    An indexed file type based on hashing.  This is available
                     only on systems with support for DBM databases.

              eennvviirroonn
                     The UNIX process environment array. The lookup key is the
                     variable name. Originally implemented for testing,  some-
                     one may find this useful someday.

              hhaasshh   An indexed file type based on hashing.  This is available
                     only on systems with support for Berkeley DB databases.

              llddaapp (read-only)
                     Perform  lookups  using  the  LDAP  protocol.   This   is
                     described in llddaappttaabbllee(5).

              mmyyssqqll (read-only)
                     Perform   lookups  using  the  MYSQL  protocol.  This  is
                     described in mmyyssqqllttaabbllee(5).

              ppccrree (read-only)
                     A lookup table based on Perl Compatible  Regular  Expres-
                     sions. The file format is described in ppccrreettaabbllee(5).

              ppggssqqll (read-only)
                     Perform  lookups  using  the PostgreSQL protocol. This is
                     described in ppggssqqllttaabbllee(5).

              pprrooxxyy (read-only)
                     A lookup table that is implemented via the Postfix  pprrooxx-
                     yymmaapp(8) service. The table name syntax is type::name.

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

              ssttaattiicc (read-only)
                     A table that always returns its name  as  lookup  result.
                     For example, ssttaattiicc::ffoooobbaarr always returns the string ffoooo-
                     bbaarr as lookup result.

              ttccpp (read-only)
                     Perform lookups using  a  simple  request-reply  protocol
                     that  is  described in tcptable(5).  This feature is not
                     included with Postfix 2.1.

              uunniixx (read-only)
                     A limited way to query the UNIX authentication  database.
                     The following tables are implemented:

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

                     uunniixx::ggrroouupp..bbyynnaammee
                            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.

       -nn     Print  parameter  settings  that  are not left at their built-in
              default value, because they are explicitly specified in main.cf.

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

DIAGNOSTICS       Problems are reported to the standard error stream.

ENVIRONMENT       MMAAIILLCCOONNFFIIGG
              Directory with Postfix configuration files.

CCOONNFFIIGGUURRAATTIIOONN PPAARRAAMMEETTEERRSS
       The following mmaaiinn..ccff parameters are especially relevant to  this  pro-
       gram.

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

       ccoonnffiiggddiirreeccttoorryy ((sseeee ''ppoossttccoonnff -dd'' oouuttppuutt))
              The default location of the Postfix main.cf and  master.cf  con-
              figuration files.

FILES       /etc/postfix/main.cf, Postfix configuration parameters

SEE ALSO
       postconf(5), configuration parameters

README FILES       Use  "ppoossttccoonnff rreeaaddmmeeddiirreeccttoorryy" or "ppoossttccoonnff hhttmmllddiirreeccttoorryy" to locate
       this information.
       DATABASEREADME, Postfix lookup table overview

LLIICCEENNSSEE
       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



                                                                   POSTCONF(1)