postfix - Postfix control program
SYNOPSISpostfix [-cconfig_dir] [-D] [-v] commandDESCRIPTION
The postfix command controls the operation of the Postfix
mail system: start or stop the master daemon, do a health
check, and other maintenance. The command sets up a stan-
dardized environment and runs the postfix-script shell
script to do the actual work.
The following commands are implemented:
check Validate the Postfix mail system configuration.
Warn about bad directory/file ownership or permis-
sions, and create missing directories.
start Start the Postfix mail system. This also runs the
configuration check described above.
stop Stop the Postfix mail system in an orderly fashion.
Running processes are allowed to terminate at their
Note: in order to refresh the Postfix mail system
after a configuration change, do not use the start
and stop commands in succession. Use the reload
abort Stop the Postfix mail system abruptly. Running pro-
cesses are signaled to stop immediately.
flush Force delivery: attempt to deliver every message in
the deferred mail queue. Normally, attempts to
deliver delayed mail happen at regular intervals,
the interval doubling after each failed attempt.
reload Re-read configuration files. Running processes ter-
minate at their earliest convenience.
The following options are implemented:
Read the main.cf and master.cf configuration files
in the named directory instead of the default con-
figuration directory. Use this to distinguish
between multiple Postfix instances on the same
-D (with postfixstart only)
Run each Postfix daemon under control of a debugger
as specified via the debugger_command configuration
-v Enable verbose logging for debugging purposes. Mul-
tiple -v options make the software increasingly
The postfix command sets the following environment vari-
Directory with Postfix configuration files.
This is set when the -v command-line option is pre-
This is set when the -D command-line option is pre-
The following configuration parameters are made available
as process environment variables with the same names:
Directory with Postfix support commands (default:
Directory with Postfix daemon programs (default:
Directory with Postfix configuration files and with
administrative shell scripts.
The directory with the Postfix queue directory (and
with some files needed for programs running in a
The owner of the Postfix queue and of most Postfix
$config_directory/postfix-script, administrative commands
SEEALSOmaster(8) Postfix master program
The Secure Mailer license must be distributed with this
IBM T.J. Watson Research
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