Postfix End of Life (EOL) Dates & Support Timeline
Complete end-of-life dates, support windows, and security status for all Postfix versions. Data sourced from endoflife.date and official vendor documentation. Updated at every deploy.
| Version | Latest Release | Release Date | EOL Date | Days | Status |
|---|---|---|---|---|---|
| 2.5 | 2.5.17 | Jan 24, 2008 | Feb 6, 2012 | 5251 days past EOL | EOL |
| 2.6 | 2.6.19 | May 12, 2009 | Feb 11, 2013 | 4880 days past EOL | EOL |
| 2.8 | 2.8.20 | Jan 20, 2011 | Feb 8, 2015 | 4153 days past EOL | EOL |
| 2.9 | 2.9.15 | Feb 1, 2012 | Feb 24, 2016 | 3772 days past EOL | EOL |
| 2.10 | 2.10.10 | Feb 11, 2013 | Feb 28, 2017 | 3402 days past EOL | EOL |
| 2.11 | 2.11.11 | Jan 15, 2014 | Feb 21, 2018 | 3044 days past EOL | EOL |
| 3.0 | 3.0.15 | Feb 8, 2015 | Feb 27, 2019 | 2673 days past EOL | EOL |
| 3.1 | 3.1.15 | Feb 24, 2016 | Mar 15, 2020 | 2291 days past EOL | EOL |
| 3.2 | 3.2.22 | Feb 28, 2017 | Apr 29, 2021 | 1881 days past EOL | EOL |
| 3.3 | 3.3.22 | Feb 22, 2018 | Feb 5, 2022 | 1599 days past EOL | EOL |
| 3.4 | 3.4.29 | Feb 27, 2019 | Apr 17, 2023 | 1163 days past EOL | EOL |
| 3.5 | 3.5.25 | Mar 15, 2020 | Mar 6, 2024 | 839 days past EOL | EOL |
| 3.6 | 3.6.18 | Apr 29, 2021 | Feb 16, 2025 | 492 days past EOL | EOL |
| 3.7 | 3.7.20 | Feb 6, 2022 | Mar 6, 2026 | 109 days past EOL | EOL |
| 3.8 | 3.8.18 | Apr 17, 2023 | TBD | Supported | Active |
| 3.9 | 3.9.12 | Mar 6, 2024 | TBD | Supported | Active |
| 3.10 | 3.10.11 | Feb 16, 2025 | TBD | Supported | Active |
| 3.11 | 3.11.4 | Mar 6, 2026 | TBD | Supported | Active |
What does Postfix end of life mean for your organization?
When a version of Postfix reaches end of life, the maintainers stop issuing security patches. Vulnerabilities discovered after this date are publicly disclosed on the National Vulnerability Database, exploit code appears on GitHub, and your systems remain permanently exposed.
The CVE blind spot: Most vulnerability scanners check for known CVEs but do not flag the accumulation of unpatched vulnerabilities in EOL software. With a zero-day, nobody knows about the vulnerability. With EOL software, the vulnerability is public — listed, rated, and often weaponized — but no patch will ever exist. This is the most dangerous gap in enterprise security posture.
Organizations running EOL Postfix should treat it as a vulnerability class in their risk register, apply compensating controls (network segmentation, enhanced monitoring, access restriction), and prioritize migration to a supported version.
Extended Support Options
If you cannot migrate immediately, extended support vendors provide continued security patches for EOL Postfix versions. This is a bridge, not a permanent solution — plan your migration in parallel.
We work with vetted extended support vendors. Tell us what you need and we'll connect you with the right provider.
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