Postfix End of Life Dates

Postfix is a mature mail transfer agent that has been a cornerstone of email infrastructure since its creation in 1998 by Wietse Venema. Maintained by the same, it has garnered a significant following among developers due to its reliability, flexibility, and security features. Developers use Postfix for its ability to handle a wide range of email protocols and its customizability, making it an ideal choice for various email server setups. With a history spanning over two decades, Postfix has undergone numerous updates, resulting in a total of 18 versions, with the latest stable version being 3.11.3.

The landscape of Postfix versions is characterized by a mix of active and end-of-life releases. Out of the 18 versions, 14 have reached their end-of-life, with the most recent one being version 3.7, which expired on 2026-03-06. Currently, there are 4 active versions, providing developers with a range of options for their email server needs. Notably, the next end-of-life date for any Postfix version is not currently announced, giving developers a window of opportunity to plan and upgrade their systems without immediate pressure.

From a security standpoint, Postfix has a commendable track record, with a total of 0 CVEs tracked and 0 critical CVEs. This indicates a high level of security and stability in the software. As a result, there is no most affected version, and no specific action is required from developers in terms of security patches. Additionally, with no known vulnerabilities, Postfix does not have a KEV status, further reinforcing its reputation as a secure email solution. Developers can continue to use and rely on Postfix for their email infrastructure needs, enjoying the peace of mind that comes with a secure and well-maintained software.