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Postfix
Active
Server Software Latest Version: 3.11.3 Latest Release: May 18, 2026
Postfix is a free, open-source mail transfer agent (MTA) known for its security and performance.
Versions
18
Latest Version
3.11.3
Active Support
4
EOL
14
Lifecycle Timeline
Today ↓
3.11
3.11
3.10
3.10
3.9
3.9
3.8
3.8
3.7
3.7
3.6
3.6
3.5
3.5
3.4
3.4
3.3
3.3
3.2
3.2
Active SupportSecurity SupportEOL
Versions
| Release | Release Date | Active Support | EOL | Latest Version | LTS | Status |
|---|---|---|---|---|---|---|
| 3.11 | Mar 6, 2026 | Yes | No | 3.11.3 | No | Active |
| 3.10 | Feb 16, 2025 | Yes | No | 3.10.10 | No | Active |
| 3.9 | Mar 6, 2024 | Yes | No | 3.9.11 | No | Active |
| 3.8 | Apr 17, 2023 | Yes | No | 3.8.17 | No | Active |
| 3.7 | Feb 6, 2022 | No | Mar 6, 2026 | 3.7.20 | No | EOL |
| 3.6 | Apr 29, 2021 | No | Feb 16, 2025 | 3.6.18 | No | EOL |
| 3.5 | Mar 15, 2020 | No | Mar 6, 2024 | 3.5.25 | No | EOL |
| 3.4 | Feb 27, 2019 | No | Apr 17, 2023 | 3.4.29 | No | EOL |
| 3.3 | Feb 22, 2018 | No | Feb 5, 2022 | 3.3.22 | No | EOL |
| 3.2 | Feb 28, 2017 | No | Apr 29, 2021 | 3.2.22 | No | EOL |
| 3.1 | Feb 24, 2016 | No | Mar 15, 2020 | 3.1.15 | No | EOL |
| 3.0 | Feb 8, 2015 | No | Feb 27, 2019 | 3.0.15 | No | EOL |
| 2.11 | Jan 15, 2014 | No | Feb 21, 2018 | 2.11.11 | No | EOL |
| 2.10 | Feb 11, 2013 | No | Feb 28, 2017 | 2.10.10 | No | EOL |
| 2.9 | Feb 1, 2012 | No | Feb 24, 2016 | 2.9.15 | No | EOL |
| 2.8 | Jan 20, 2011 | No | Feb 8, 2015 | 2.8.20 | No | EOL |
| 2.6 | May 12, 2009 | No | Feb 11, 2013 | 2.6.19 | No | EOL |
| 2.5 | Jan 24, 2008 | No | Feb 6, 2012 | 2.5.17 | No | EOL |
Frequently Asked Questions
Which versions of Postfix have reached end of life?
The following Postfix versions have reached end of life and no longer receive security updates: 3.7, 3.6, 3.5, 3.4, 3.3, 3.2, 3.1, 3.0 (and 6 more). It is recommended to upgrade to a supported version.
Is it safe to continue using Postfix 3.7?
Postfix 3.7 has reached end of life and no longer receives security patches or bug fixes. Continuing to use it may expose your systems to known vulnerabilities. We strongly recommend upgrading to a supported version.
What is the latest version of Postfix?
The latest version of Postfix is 3.11.3, released in the 3.11 release cycle.
How many versions of Postfix are currently supported?
Postfix currently has 4 actively supported version(s): 3.11, 3.10, 3.9, 3.8.
When does Postfix 3.11 reach end of life?
Postfix 3.11 does not have a specific end-of-life date announced yet.
What should I do when Postfix reaches end of life?
When a Postfix version reaches end of life, you should: 1) Plan your migration to a supported version as soon as possible. 2) Review the release notes for breaking changes. 3) Test your applications thoroughly in a staging environment. 4) Update your dependencies to ensure compatibility with the new version.