In Part 1of this TechBuilder Recipe, I showed you how to create a secure, basic e-mail server for your SMB customers by using open source software, specifically FreeBSD, Postfix, and Dovecot. Now in Part 2, you'll learn how to extend the functionality of that basic system by adding virus protection, spam detection, and Webmail access.
he system we built in Part 1 of this Recipe used only free, open-source software. Same with Part 2. All the programs you'll need are free, open-source software. They are all included in the FreeBSD ports and packages system, as discussed in Part 1.