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

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 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.

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 newaliases …

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.

Mar 8, 2010 · This coincides with the legacy release Postfix 2.4.9, the stable release Postfix 2.5.5, and the experimental release Postfix 2.6-20080902. Aug 14, 2008: Postfix local privilege escalation via …

Fixed with Postfix 3.8.5, 3.7.10, 3.6.14, 3.5.24: Security: this release improves support to defend against an email spoofing attack (SMTP smuggling) on recipients at a Postfix server.

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 configurations that each …

The Postfix queue manager implements the analog of the TCP slow start flow control strategy: when delivering to a site, send a small number of messages first, then increase the concurrency as long as …