Also, for users of transient mail services -- I've done some hacking on the mail delivery systems. Right now, your mail is still filtered through spam assasin before it gets to you -- but as you may have noticed, spam assassin isn't all that superduper anymore. I'm building up a corpus of spam and ham for training a bayesian filter, and for now I've turned on it's checking (but make no decisions based on it). Look at the headers and you should see it's verdict. For blatant spam that slipped through anyway, you may forward it to "spam at transient" or for ham that you think is worth having in the corpus, "ham at transient". Neither of these is particularly necessary though, and it should get better and better as it goes on.
This is stage one of the mail system I'm working on for seth.