I installed SpamBayes for Outlook this morning, and I must say I am impressed. So far today it's filtered 372 spams, with about 40 of them "questionable", and no false positives. I already had about 900 known spams and 1200 known "hams" to train it on. I had just about decided to give up on Outlook and go to Thunderbird exclusively, but this lets me keep all my work stuff on Outlook. I get a lot of spam because I have several domains registered to my address, and I buy a lot of stuff online with the receipts coming back to it. I know I could use tricks to avoid the spam but it's a PITA.