This website has information about the Postfix source code distribution. Built from source code, Postfix can run on UNIX-like systems including AIX, BSD, HP-UX, Linux, MacOS X, Solaris, and more.

Postfix is a free and open-source mail transfer agent (MTA) that routes and delivers electronic mail. It is released under the IBM Public License 1.0 which is a free software license.

Jan 27, 2026 · Postfix is a free, open‑source Mail Transfer Agent (MTA) for Unix‑like systems that routes and delivers email. It was designed as a Sendmail replacement with a strong focus on security, …

Postfix logging to file or stdout Backwards-Compatibility Support Replacements for Deprecated Features Installation from source code Problem solving Bottleneck analysis Stress-dependent configuration …

Postfix runs (or has run) on AIX, BSD, HP-UX, IRIX, LINUX, MacOS X, Solaris, Tru64 UNIX, and other UNIX systems. It requires ANSI C, a POSIX.1 library, and BSD sockets.

5 days ago · Install and configure Postfix mail server on Ubuntu for SMTP email delivery, with dovecot SASL, without Virtual Domains or advanced configurations.

Mar 12, 2025 · Secure the mail configuration of Postfix with this step-by-step guide, use relevant commands, and increase both security and privacy.