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 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

                                                                               POSTLOGD(8postfix)