Brightmail's anti-spam system (Brightmail was acquired by Symantec) does just that. And has been doing so for about 5 years. It has a similar honeypot system, and was, as an example, the first vendor to trap and prevent the "I Love You" virus. I believe they already have the patents on this.
Slashdot Mirror
http://thomashawk.com/2005/11/priceritephoto-abusi ve-bait-and-switch.html
Brightmail's anti-spam system (Brightmail was acquired by Symantec) does just that. And has been doing so for about 5 years. It has a similar honeypot system, and was, as an example, the first vendor to trap and prevent the "I Love You" virus. I believe they already have the patents on this.