Message filtering method

Details Message filtering method Message filtering method

2004-09-03

2010-11-16

Trost, IV, William (Department: 2472)

Multiplex communications

Diagnostic testing

Determination of communication parameters

C370S395520, C709S206000, C709S207000, C709S229000

Reexamination Certificate

active

07835294

ABSTRACT:
A message filtering method makes use of a database in which domain names of a network, such as the Internet, are associated with IP addresses, or with geographic locations. Electronic messages are tested for authenticity by comparing domain names and IP addresses for a message being tested with information in the database. If the sender information in the message does not have the same associations as information in the database, the message may be blocked, flagged as spam, or subjected to further filtering.

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