One thing about getting your server hosed is that it’s finally an opportunity to do all that reconfiguration crap you’ve been putting off. Annoyingly, I discovered that I had become way too dependent on webmin for configuration. Kinda ashamed really, I used to be able to set things up completely by hand… including sendmail. Aside: the people who answer sendmail questions with “it’s too hard and insecure, use postfix” can go hang. Get yourself the fruit bat book and learn it the same way the rest of us did back in the BOFH days. It builds character.
Having said that, I made the switch to postfix since most SpamAssassin set-ups use it. Plus I get a leg up on making the switch to Leopard Server when it’s finally released. The Mac Mini colocation farm is just too great of a deal (and cheaper than what I’m paying now).