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, …

This document covers basic Postfix configuration. Information about how to configure Postfix for specific applications such as mailhub, firewall or dial-up client can be found in the …

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

The Postfix SMTP server receives mail from the network and is exposed to the big bad world of junk email and viruses. This document introduces the built-in and external methods that …

The text not only describes delivery mechanisms that are built into Postfix, but also gives pointers for using non-Postfix mail delivery software. The following topics are covered:

In particular, do not proceed here if you don't already have Postfix working for local mail submission and for local mail delivery. The first part of this document presents standard …

Although Postfix currently has no address rewriting language, it can do surprisingly powerful address manipulation via table lookup. Postfix typically uses lookup tables with fixed strings to …

However, when support for multiple Postfix instances is configured, postfix (1) executes the command specified with the multi_instance_wrap - per configuration parameter.

New Postfix users should first look at the following introductory documents. These introductions are hyperlinked to more advanced documents and to UNIX-style manual pages.

The Postfix architecture overview ends with a summary of command-line utilities for day-to-day use of the Postfix mail system. Besides the Sendmail-compatible sendmail (1), mailq (1), and …