http://www.avnonline.com/index.php?Primary...ntent_ID=220868
ARMONK, N.Y - IBM has introduced a new anti-spam technology called Fair use of Unsolicited Commercial Email (FairUCE) that bounces spam back to its sender.
The tool analyzes the domain identity of an email, linking it back to its original IP address and can identify if messages are arriving from a zombie computer, bot or a legitimate email server, according to the company.
Interesting