The Postfix Home Page All programmers are optimists -- Frederick P. Brooks, Jr. First of all, thank you for your interest in the Postfix project. What is Postfix? It is Wietse Venema's mail server that started …

Jan 27, 2026 · Postfix is a great fit when you want a robust, open‑source MTA that “just works” but is still highly tunable for serious workloads. It is less ideal if you need a full ESP‑style UI or don’t want to …

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.

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 feature overview Supported environments 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 …

Postfix configuration files By default, Postfix configuration files are in /etc/postfix. The two most important files are main.cf and master.cf; these files must be owned by root. Giving someone else write …

Jun 15, 2026 · Install and configure Postfix mail server on Ubuntu for SMTP email delivery, with dovecot SASL, without Virtual Domains or advanced configurations.

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

Postfix email firewall/gateway The idea is to set up a Postfix email firewall/gateway that forwards mail for "example.com" to an inside gateway machine but rejects mail for "anything.example.com". There is …

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