Additional Information and How to Obtain Postfix
You can get more information about Postfix at the official web site: The Postfix Home Page (http://www.postfix.org/). The site contains the source code, documentation, links to add-on software, articles, and additional information about Postfix. There is also information about joining an active mailing list that discusses all aspects of Postfix.
If you don’t have a copy of Postfix already, you can obtain the source code from the Postfix web site. It is, however, quite possible that there is a precompiled package for your platform that may be more convenient for you. If that is the case, you can obtain the Postfix package for your operating system and use your system’s normal tools for software installation and configuration. You should check the normal repositories you use to get software for your system.
There are many good reasons to build Postfix for yourself: there may not be a pre-packaged bundle for your platform, you might not trust the packager of the bundle to have done everything correctly for your environment, you might need support for add-ons that are not built into a package, you might need a more current version than is available in packages, or you might just enjoy the task. If you have any experience compiling software, you’ll have no trouble building Postfix. It’s one of the easier open source packages to compile.
The Postfix web site has a download link that displays a list of mirrors from which you can get the software. ...