News.com reports: AT&T patents anti-antispam technology. Shouldn’t the double negatives cancel out and the headline read “AT&T patents spam technology?”
The patent describes a system and method for counteracting message filtering:
A system and method for circumventing schemes that use duplication detection to detect and block unsolicited e-mail (spam.) An address on a list is assigned to one of m sublists, where m is an integer that is greater than one. A set of m different messages are created. A different message from the set of m different messages is sent to the addresses on each sublist. In this way, spam countermeasures based upon duplicate detection schemes are foiled.
