Postfix 3.3 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
Postfix 3.3 reached end of life on 5 Feb 2022. It no longer receives security fixes.
1,646 days without security patches
Recommended action: upgrade to Postfix 3.11. Check your versionpostconf mail_version
Support timeline
Official dates from the Postfix release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 22 Feb 2018 | — |
| End of life | 5 Feb 2022 | 4.5 years ago |
| Latest release | 3.3.22 · 6 Feb 2022 | final |
Where to go from 3.3
Recommended target: Postfix 3.11.
The newest actively supported branch is Postfix 3.11 (latest release 3.11.5).
Frequently asked questions
Is Postfix 3.3 still safe to use?
Postfix 3.3 reached end of life on 5 Feb 2022, 1,646 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Postfix 3.3?
Yes — the final release (3.3.22) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Postfix 3.3 to?
Upgrade to Postfix 3.11, the newest actively supported branch.