POSTLOGD(8)                                                        POSTLOGD(8)

NAME
       postlogd - Postfix internal log server

SYNOPSIS
       postlogd [generic Postfix daemon options]

DESCRIPTION
       This  program  logs events on behalf of Postfix programs when the mail-
       log_file configuration parameter specifies a non-empty value.

BUGS
       Non-daemon Postfix programs don't know that  they  should  log  to  the
       internal  logging  service  before  they  have  processed  command-line
       options and main.cf parameters. These programs still log earlier events
       to the syslog service.

       If  Postfix  is down, the non-daemon programs postfix(1), postsuper(1),
       postmulti(1), and postlog(1), will log directly to $maillog_file. These
       programs expect to run with root privileges, for example during Postfix
       start-up, reload, or shutdown.

       Other non-daemon Postfix programs will never write directly  to  $mail-
       log_file (also, logging to stdout would interfere with the operation of
       some of these programs). These programs can log to postlogd(8) if  they
       are run by the super-user, or if their executable file has set-gid per-
       mission. Do not set this permission on programs other than postdrop(1),
       postqueue(1) and (Postfix >= 3.7) postlog(1).

CONFIGURATION PARAMETERS
       Changes to main.cf are not picked up automatically, because postlogd(8)
       terminates only after reaching the max_idle time limit.  Use  the  com-
       mand "postfix reload" to speed up a change.

       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  con-
              figuration files.

       maillog_file (empty)
              The  name  of an optional logfile that is written by the Postfix
              postlogd(8) service.

       process_id (read-only)
              The process ID of a Postfix command or daemon process.

       process_name (read-only)
              The process name of a Postfix command or daemon process.

       syslog_name (see 'postconf -d' output)
              A prefix that  is  prepended  to  the  process  name  in  syslog
              records, so that, for example, "smtpd" becomes "prefix/smtpd".

       service_name (read-only)
              The master.cf service name of a Postfix daemon process.

       postlogd_watchdog_timeout (10s)
              How  much  time  a  postlogd(8)  process  may  take to process a
              request before it is terminated by a built-in watchdog timer.

       Available in Postfix 3.9 and later:

       maillog_file_permissions (0600)
              The file access permissions that  will  be  set  when  the  file
              $maillog_file is created for the first time, or when the file is
              created after an existing file is rotated.

SEE ALSO
       postconf(5), configuration parameters
       syslogd(8), system logging

README_FILES
       Use "postconf readme_directory" or "postconf html_directory" to  locate
       this information.
       MAILLOG_README, Postfix logging to file or stdout

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

HISTORY
       This service was introduced with Postfix version 3.4.

AUTHOR(S)
       Wietse Venema
       Google, Inc.
       111 8th Avenue
       New York, NY 10011, USA

       Wietse Venema
       porcupine.org

                                                                   POSTLOGD(8)