Ermmmmm

I've never encountered a "crash" that caused a system to power down either, which is why I was confused. The first thing I did was check on the other servers plugged into the same UPS...they were all fine. I moved on, started doing the admin panic dance thinking that it was some sort of strange DoS that cause my system to power down (smart, huh?). Coming to my senses, I went and tested each port in the PSU and it turns out the that the spamassassin server was plugged into was bad.....a new PSU is on the way.

Good call, SirDice.