Postfix 3.9 · Version Status
Postfix 3.9 End of Life Date
Postfix 3.9 end-of-life date, support status, and CVE risk. Data from endoflife.date and official vendor documentation.
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Postfix 3.9 is actively supported. EOL date: Already EOL.
EOL Date
Already EOL
Supported
Latest Release
3.9.10
Standard release
Release Date
Mar 6, 2024
Postfix 3.9 series
| Version | Latest | EOL Date | Status |
|---|
| 2.5 |
2.5.17 |
Feb 6, 2012 |
EOL |
| 2.6 |
2.6.19 |
Feb 11, 2013 |
EOL |
| 2.8 |
2.8.20 |
Feb 8, 2015 |
EOL |
| 2.9 |
2.9.15 |
Feb 24, 2016 |
EOL |
| 2.10 |
2.10.10 |
Feb 28, 2017 |
EOL |
| 2.11 |
2.11.11 |
Feb 21, 2018 |
EOL |
| 3.0 |
3.0.15 |
Feb 27, 2019 |
EOL |
| 3.1 |
3.1.15 |
Mar 15, 2020 |
EOL |
What does Postfix 3.9 end of life mean?
When Postfix 3.9 reaches end of life, the maintainers stop issuing security patches for this version. CVEs discovered after the EOL date are publicly disclosed on the National Vulnerability Database with no patch available. Exploit code frequently appears on GitHub within days of disclosure.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the ongoing accumulation of unpatched vulnerabilities in EOL software versions. Running Postfix 3.9 past its EOL date creates a permanently growing attack surface that standard security tooling will not surface.
Migrate to Postfix 3.11 or implement compensating controls — network segmentation, enhanced monitoring, restricted access — while migration is underway.
Frequently Asked Questions
When does Postfix 3.9 reach end of life?
Postfix 3.9 has already reached end of life.
Is Postfix 3.9 still supported?
Yes, Postfix 3.9 is currently supported. The EOL date is Already EOL.
What should I upgrade to from Postfix 3.9?
The recommended upgrade from Postfix 3.9 is
Postfix 3.11 — the latest actively supported version. Check the
Postfix full timeline for all supported versions.
What are the security risks of running Postfix 3.9 past EOL?
When Postfix 3.9 reaches end of life, the maintainers stop issuing security patches. Any CVEs disclosed after the EOL date accumulate with no remediation path. Most vulnerability scanners do not flag this — it is the CVE blind spot. Organizations running EOL Postfix should migrate immediately or implement compensating controls.