Postfix end of life: end of support by version
Postfix Project · Servers & Databases
For Postfix by Postfix Project, patchletter knows 12 support cycles. 8 of them have already ended and receive no more security updates. The current version of Postfix is 3.11.7. The cycles come from the open endoflife.date project, last reconciled on 07/11/2026.
When does support end for which Postfix version?
A cycle is a maintained version line. Where a date is given, support ends on that day. After it the vendor ships no more security updates for that line.
| Cycle | Latest version | End of support | Status |
|---|---|---|---|
| 3.11 | 3.11.7 | no date on record | supported |
| 3.10 | 3.10.14 | no date on record | supported |
| 3.9 | 3.9.15 | no date on record | supported |
| 3.8 | 3.8.21 | no date on record | supported |
| 3.7 | 3.7.23 | 247 days ago | End of Life |
| 3.6 | 3.6.21 | 630 days ago | End of Life |
| 3.5 | 3.5.28 | 977 days ago | End of Life |
| 3.4 | 3.4.29 | 1301 days ago | End of Life |
| 3.3 | 3.3.22 | 1737 days ago | End of Life |
| 3.2 | 3.2.22 | 2019 days ago | End of Life |
| 3.1 | 3.1.15 | 2429 days ago | End of Life |
| 3.0 | 3.0.15 | 2811 days ago | End of Life |
Which Postfix versions no longer receive security updates?
8 of 12 cycles have ended. If you run one of those lines, the vendor ships you no more patches, not even for critical flaws.
- Postfix 3.73.7.23
- Postfix 3.63.6.21
- Postfix 3.53.5.28
- Postfix 3.43.4.29
- Postfix 3.33.3.22
- Postfix 3.23.2.22
- Postfix 3.13.1.15
- Postfix 3.03.0.15
Where does the EOL data for Postfix come from?
From the open endoflife.date project, which collects vendors' official support commitments. patchletter reconciles the cycles daily; the Postfix data is as of 07/11/2026. In case of doubt the vendor's own lifecycle page applies. patchletter deliberately stores no vendor full texts.
New Postfix versions by email
Tick the product and patchletter reports new releases by email. The update email costs nothing, and one click stops it again. The warning 90, 30 and 7 days before support ends is part of patchletter Pro.