Section: Maintenance Commands (8)
Postfix internal log server
postlogd [generic Postfix daemon options]
This program logs events on behalf of Postfix programs
when the maillog configuration parameter specifies a non-empty
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)
Changes to main.cf
are picked up automatically, as
(8) processes run for only a limited amount
of time. 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
- maillog_file (empty)
The name of an optional logfile that is written by the Postfix
- 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.
postconf(5), configuration parameters
syslogd(8), system logging
Use "postconf readme_directory
" to locate this information.
MAILLOG_README, Postfix logging to file or stdout
The Secure Mailer license must be distributed with this software.
This service was introduced with Postfix version 3.4.
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