I also recommend SpamNet. It works seamlessly with Outlook and Outlook Express (only) and by the time the 30-day free trial was over it was catching more than 90% of the spam with very few false positives.

It costs $4.99/month after the free trial. They gave me a referral code -- 6ay4hl -- that will give you a $3.99/month rate and me a free month if you care to use it.

www.cloudmark.com/spamnet

QL