Enabling Postfix with SASL & TSL Support

This guy writes a good post about setting up Postfix with SASL/TSL support for those of you who have been wanting to know how or why...

I finally got around to documenting my notes on configuring a Trustix server as mail gateway with support for SASL (Simple Authentication and Security Layer) for user authentication and with TSL (Transport Security Layer) for encrypting the login and subsequent mail traffic.