Spamnet isn’t perfect. It correctly blocks about 40 spams a day of mine. But it also incorrectly blocks about 1 non-spam per day. That’s a big pain because it means I have to sift through my spam list every week or so looking for mistakes.
I’m going to try using dual filtering. I’ll set my ISP’s SpamAssassin to a conservative setting and keep Spamnet. The idea being that SpamAssassin won’t have any accidental hits. That will reduce the number of emails I’ll have to sift through.
As a side note, I just found out that Spamnet uses the same spam identification network that SpamAssassin does. SpamAssassin uses Vipul’s Razor for fingerprinting spams.