POSTFIX(1) POSTFIX(1) NAME postfix - Postfix control program SYNOPSIS postfix [-c config_dir] [-D] [-v] command DESCRIPTION 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 earliest convenience. 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 command instead. 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: -c config_dir The absolute path to a directory with Postfix con- figuration files. Use this to distinguish between multiple Postfix instances on the same host. -D (with postfix start only) Run each Postfix daemon under control of a debugger as specified via the debugger_command configuration parameter. 1 POSTFIX(1) POSTFIX(1) -v Enable verbose logging for debugging purposes. Mul- tiple -v options make the software increasingly verbose. ENVIRONMENT The postfix command sets the following environment vari- ables: MAIL_CONFIG Directory with Postfix configuration files. MAIL_VERBOSE This is set when the -v command-line option is pre- sent. MAIL_DEBUG This is set when the -D command-line option is pre- sent. The following configuration parameters are made available as process environment variables with the same names: command_directory Directory with Postfix support commands (default: $program_directory). daemon_directory Directory with Postfix daemon programs (default: $program_directory). config_directory Directory with Postfix configuration files and with administrative shell scripts. queue_directory The directory with the Postfix queue directory (and with some files needed for programs running in a chrooted environment). mail_owner The owner of the Postfix queue and of most Postfix processes. FILES $config_directory/postfix-script, administrative commands SEE ALSO master(8) Postfix master program LICENSE The Secure Mailer license must be distributed with this software. 2 POSTFIX(1) POSTFIX(1) AUTHOR(S) Wietse Venema IBM T.J. Watson Research P.O. Box 704 Yorktown Heights, NY 10598, USA 3