This website has information about the Postfix source code distribution. Built from source code, Postfix can run on UNIX-like systems …

Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail. It is released under the IBM …

Postfix logging to file or stdout Backwards-Compatibility Support Replacements for Deprecated Features Installation from source …

Jul 12, 2026 · Postfix is a free, open‑source Mail Transfer Agent (MTA) for Unix‑like systems that routes and delivers email. It was …

Jun 30, 2026 · Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail. It is a fast, …

Postfix currently does not implement a rewriting language, but a lot can be done via table lookups and, if need be, regular …

Postfix uses database files for access control, address rewriting and other purposes. The DATABASE_README file gives an …

Download Postfix software from various sources to set up a reliable and efficient mail server.

Postfix runs (or has run) on AIX, BSD, HP-UX, IRIX, LINUX, MacOS X, Solaris, Tru64 UNIX, and other UNIX systems. It requires …

New Postfix users should first look at the following introductory documents. These introductions are hyperlinked to more advanced …