NAME

       postlogd - Postfix internal log server

SYNOPSIS

       postlogd [generic Postfix daemon options]

DESCRIPTION

       This  program  logs  events  on  behalf of Postfix programs when the maillog_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 $maillog_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  permission.  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 command "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 configuration 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)