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Start / Stop / Restart Postfix Mail Server

How do I start / stop / restart my postfix mail server under Linux or UNIX operating systems?

You can use the following commands to start / stop and restart mail system. Please note that the following commands are reserved for the superuser i.e. you must be root to run them.

UNIX / Linux Postfix Control Program

The postfix command controls the operation of the Postfix mail system: start or stop the master daemon, do a health check, and other maintenance.

Task: Stop Postfix

Type the following command:
# postfix stop

Task: Start Postfix

Type the following command:
# postfix start

Task: Restart Postfix

Type the following command:
# postfix stop && postfix start

Task: Reload Postfix

To re-read configuration files, enter:
# postfix reload
The following distribution specific commands can be used too.

Debain / Ubuntu Linux Postfix Start / Stop / Restart Command

Type the following commands:
$ sudo /etc/init.d/postfix start
$ sudo /etc/init.d/postfix stop
$ sudo /etc/init.d/postfix restart

$ sudo service postfix start
$ sudo service postfix stop
$ sudo service postfix restart

RHEL / CentOS / Fedora Linux Postfix Start / Stop / Restart Command

# /sbin/service postfix start
# /sbin/service postfix stop
# /sbin/service postfix restart

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{ 6 comments… add one }

  • Amensan November 6, 2011, 5:30 pm

    Hi, How to show my pid number on running for postfix services?

    • bagali November 11, 2011, 3:59 am

      Type ps -ef | grep postfix

    • adburger September 3, 2014, 4:00 pm

      posfix status

  • Alex November 6, 2012, 10:54 am

    Try cat /var/run/postfix*

  • Bruno March 21, 2014, 12:52 am

    another useful command sudo dpkg-reconfigure postfix

  • sanjay June 28, 2014, 10:10 am

    how to send or create mail by postfix in terminal

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