Using Open Source Tools to Filter Email on Mac OS X Server

摘要

If you are a systems administrator, you know that mail servers worldwide are saturated by virus traffic. There are simple, powerful ways to add virus filtering to a Mac OS X Server-based mail server, in order to block, remove, or disable harmful content in incoming and outgoing email. Because Mac OS X Server is a UNIX-based system, there is a wealth of freely-available open-source software that you can download and use, including virus-filtering tools. Keeping your email clean of viruses is always a good idea, especially if you have a heterogeneous network—infected email can be passed through your server to infect machines running other operating systems. With the" tools discussed in this article, keeping your email virus-free is easy, free and customizable. This article steps you through the installation and setup of some widely-used tools: Perl-based Amasvisd-new, Spam Assassin, and ClamAV. There are other, similar open-source tools available, but completing this exercise shows you one way to keep your mail server clean of viruses; you can try other solutions, as well.