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Postfix is Wietse Venema’s mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Now at Google, Wietse continues to support Postfix. Postfix attempts to be fast, easy to administer, and secure. The outside has a definite Sendmail-ish flavor, but the inside is completely different.

Release Released Security Support Latest
3.7 11 months ago
(06 Feb 2022)
Yes 3.7.4
(22 Jan 2023)
3.6 1 year and 9 months ago
(29 Apr 2021)
Yes 3.6.8
(22 Jan 2023)
3.5 2 years and 10 months ago
(15 Mar 2020)
Yes 3.5.18
(22 Jan 2023)
3.4 3 years and 11 months ago
(27 Feb 2019)
Yes 3.4.28
(22 Jan 2023)
3.3 4 years and 11 months ago
(22 Feb 2018)
Ended 11 months ago
(05 Feb 2022)
3.3.22
2.8 4 years and 11 months ago
(10 Feb 2018)
Ended 7 years and 11 months ago
(08 Feb 2015)
2.8.20

More information is available on the Postfix website.

You should be running one of the supported release numbers listed above in the rightmost column.

You can check the version that you are currently using by running:
postconf mail_version

You can submit an improvement to this page on GitHub :octocat: . This page has a corresponding Talk Page.

A JSON version of this page is available at /api/postfix.json. See the API Documentation for more information. You can subscribe to the iCalendar feed at /calendar/postfix.ics.

This page was last updated on 24 January 2023. Latest releases are automatically updated.