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 life at IBM research as an alternative to the widely-used Sendmail program. After eight years at Google, Wietse continues to maintain Postfix. Postfix attempts to be fast, easy to ...
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 permission to main.cf or master.cf (or to their parent directories) means giving root privileges to that person.
Postfix logging to file or stdout Backwards-Compatibility Support Replacements for Deprecated Features Installation from source code Problem solving Bottleneck analysis Stress-dependent configuration Performance tuning Debugging strategies Content inspection Content inspection overview Stopping backscatter mail Built-in content inspection
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 library, and BSD sockets. In addition, Postfix requires that the file system satisfies a number of requirements that are described at the end of this page. Main features The following is a list of major ...
Postfix on a local network This section describes a local area network environment of one main server and multiple other systems that send and receive email. As usual we assume that the Internet domain name is "example.com". All systems are configured to send mail as "user@example.com", and all systems receive mail for "user@hostname.example.com". The main server also receives mail for "user ...