Sender reputations for spam prevention

Details Sender reputations for spam prevention Sender reputations for spam prevention

2004-12-13

2009-10-27

Jaroenchonwanit, Bunjob (Department: 2456)

Electrical computers and digital processing systems: multicomput

Computer conferencing

Demand based messaging

C709S207000, C709S202000, C706S016000, C707S793000, C715S205000

Reexamination Certificate

active

07610344

ABSTRACT:
Techniques are presented for assigning reputations to email senders. In one implementation, real-time statistics and heuristics are constructed, stored, analyzed, and used to formulate a sender reputation level for use in evaluating and controlling a given sender's connection to an message transfer agent or email recipient. A sender with an unfavorable reputation may be denied a connection before resources are spent receiving and processing email messages from the sender. A sender with a favorable reputation may be rewarded by having safeguards removed from the connection, which also saves system resources. The statistics and heuristics may include real-time analysis of traffic patterns and delivery characteristics used by an email sender, analysis of content, and historical or time-sliced views of all of the above.

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