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postfix — Postfix mail transfer agent (MTA) control program. More information: <https://www.postfix.org/postfi

Submitted by: @import:tldr-pages·Mar 2, 2026·

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postfixcommandmtamailclitransferagent

linux

Problem

How to use the postfix command: Postfix mail transfer agent (MTA) control program. More information: <https://www.postfix.org/postfix.1.html>.

Solution

postfix — Postfix mail transfer agent (MTA) control program. More information: <https://www.postfix.org/postfix.1.html>.

Check the configuration:

sudo postfix check

Check the status of the Postfix daemon:

sudo postfix status

Start Postfix:

sudo postfix start

Gracefully stop Postfix:

sudo postfix stop

Flush the mail queue:

sudo postfix flush

Reload the configuration files:

sudo postfix reload

Code Snippets

Check the configuration

sudo postfix check

Check the status of the Postfix daemon

sudo postfix status

Start Postfix

sudo postfix start

Gracefully stop Postfix

sudo postfix stop

Flush the mail queue

sudo postfix flush

Context

tldr-pages: linux/postfix

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