POSTMAP(1)                                             POSTMAP(1)


NAME
       postmap - Postfix lookup table management

SYNOPSIS
       postmap [-c config_dir] [-i] [-v] [-w]
       [file_type:]file_name

DESCRIPTION
       The postmap command creates a new Postfix lookup table, or
       updates  an existing one. The input and output formats are
       expected to be compatible with:

           makemap file_type file_name < file_name

       While the table update is in progress, signal delivery  is
       postponed,  and  an exclusive, advisory, lock is placed on
       the entire table, in order to avoid surprises in spectator
       programs.

       The format of a lookup table input file is as follows:

       o      Blank  lines  are  ignored.  So are lines beginning
              with `#'.

       o      A table entry has the form

                   key whitespace value

       o      A line that starts with  whitespace  continues  the
              preceding line.

       The  key  and  value are processed as is, except that sur-
       rounding white space is stripped off. Unlike with  Postfix
       alias  databases,  quotes cannot be used to protect lookup
       keys that  contain  special  characters  such  as  `#'  or
       whitespace. The key is mapped to lowercase to make mapping
       lookups case insensitive.

       Options:

       -c config_dir
              Read the main.cf configuration file  in  the  named
              directory.

       -i     Incremental  mode. Read entries from standard input
              and  do  not  truncate  an  existing  database.  By
              default,  postmap  creates  a new database from the
              entries in file_name.

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

       B-w    Do  not  warn  about  duplicate  entries;  silently



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POSTMAP(1)                                             POSTMAP(1)


              ignore them.

       Arguments:

       file_type
              The type of database to be produced.

              btree  The  output  file  is  a  btree  file, named
                     file_name.db.  This  is  available  only  on
                     systems with support for db databases.

              dbm    The  output  consists  of  two  files, named
                     file_name.pag and  file_name.dir.   This  is
                     available  only  on systems with support for
                     dbm databases.

              hash   The output file  is  a  hashed  file,  named
                     file_name.db.   This  is  available  only on
                     systems with support for db databases.

              When no file_type is specified, the  software  uses
              the  database  type specified via the database_type
              configuration parameter.

       file_name
              The name of  the  lookup  table  source  file  when
              rebuilding a database.

DIAGNOSTICS
       Problems and transactions are logged to the standard error
       stream. No output means no problems. Duplicate entries are
       skipped and are flagged with a warning.

ENVIRONMENT
       MAIL_CONFIG
              Directory with Postfix configuration files.

       MAIL_VERBOSE
              Enable verbose logging for debugging purposes.

CONFIGURATION PARAMETERS
       database_type
              Default  output  database  type.  On many UNIX sys-
              tems, the default database type is either  hash  or
              dbm.

LICENSE
       The  Secure  Mailer  license must be distributed with this
       software.

AUTHOR(S)
       Wietse Venema
       IBM T.J. Watson Research
       P.O. Box 704



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POSTMAP(1)                                             POSTMAP(1)


       Yorktown Heights, NY 10598, USA
























































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