Information Technology

We’re writing the year 1996. TV commercials start to add something like “www.companyname.com” at the bottom corners of the screen. Cell phones start to become popular. Some mates I met at the Austrian Federal Armed Forces used such things to phone with their girlfriends. As I didn’t have a girlfriend, I didn’t need a cell phone. It was the time when cell phones began to drop down from the managers to the rednecks, who carried them on their belts as if they were revolvers, always ready to draw.

It took me until October 1997 to receive my first one, due to opening a student’s account at a local bank. It was a Philips Fizz. I think I still have it somewhere at my parents, and it still should work, except for the display which has been broken by my brother. It was a cute thing. Philips seemed to have different designs which they didn’t distinguish. The antenna could be pulled out and the SIM-card had the size of a credit card. As I only had a prepaid card at that time, calls became rather expensive. I’m not quite sure if everyone was worth it.

I finally wanted to enable my users to relay mails via my own MTA, as it’s quite comfortable to be able to use the same outgoing mail server no matter what computing device you currently use or where you currently are. About three years ago there were no solutions enabling SMTP AUTH for Postfix without recompiling packages, so I had to wait until today where such features are now officially available within Debian. I found several HOWTOs about configuring SMTP AUTH with Postfix on Debian Woody or Debian Sarge, but things have changed (or will change, as Etch hasn’t been released yet). The Postfix version in Sarge is 2.1, whereas in Etch it’s 2.3. This is how I did it:

First, note that you don’t have to patch or (re-)compile anything. Etch’s Postfix package already supports TLS! First, I cared about configuring authentication with SASL, and after that I restricted authentication to TLS only. This makes debugging easier during the process. Because encryption already happens at the TLS-layer, I don’t need MD5 authentication and can stay PLAIN.