Built from source code, Postfix can run on UNIX-like systems including AIX, BSD, HP-UX, Linux, MacOS X, Solaris, and more. Postfix is also distributed as ready-to-run code by operating …

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

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 permission to …

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. In addition, …

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 …

Execute the command "postmap /etc/postfix/virtual" after editing the file. Running Postfix behind a firewall. The simplest way to set up Postfix on a host behind a firewalled network is to send all …

Each Postfix manual page is numbered after a section of the UNIX manual: examples are mailq(1) or access(5). Unfortunately, there is no single universal method to organize manual pages; …

Postfix can be built with Postfix dynamically-linked libraries (files typically named libpostfix-*.so). Postfix dynamically-linked libraries add minor run-time overhead and result in significantly …

With Postfix 2.6 and later, this environment variable forces the postfix(1) command to operate on the specified Postfix instance only. This behavior is inherited by postfix(1) commands that run …

Postfix 3.6 - 3.9 were updated earlier this week; after that, Postfix 3.6 will no longer be updated. The main changes are below. See the RELEASE_NOTES file for further details.