Electrical computers and digital processing systems: multicomput – Computer conferencing – Priority based messaging
Reexamination Certificate
2005-07-05
2005-07-05
Harvey, Jack B. (Department: 2142)
Electrical computers and digital processing systems: multicomput
Computer conferencing
Priority based messaging
C709S206000, C709S245000, C709S219000, C707S793000, C715S252000, C370S352000, C370S429000, C370S465000, C713S188000
Reexamination Certificate
active
06915334
ABSTRACT:
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.
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AT&T Corp.
Harvey Jack B.
Nguyen Hai V.
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