Postfix 3.7 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
Postfix 3.7 reached end of life on 6 Mar 2026. It no longer receives security fixes.
156 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 | 6 Feb 2022 | — |
| End of life | 6 Mar 2026 | 0.4 years ago |
| Latest release | 3.7.21 · 7 Jul 2026 | final |
Where to go from 3.7
Recommended target: Postfix 3.11.
The newest actively supported branch is Postfix 3.11 (latest release 3.11.5).
Frequently asked questions
Is Postfix 3.7 still safe to use?
Postfix 3.7 reached end of life on 6 Mar 2026, 156 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Postfix 3.7?
Yes — the final release (3.7.21) 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 3.7 to?
Upgrade to Postfix 3.11, the newest actively supported branch.