85,000 spam attempts in 3 days by one IP address (Score 1)

It's gotten so bad for me (running my own little sendmail) that I finally had to write an active spam filter. One spamming site connected to my server around 85,000 times in 3 days trying to dump their load... after 18 days of uptime this filter has accepted 434 messages and rejected 359,330 connection attempts by spammers. They don't seem to be getting the message...

Hopefully I can get this filter into a release ready state some time early in the new year.