Countering spam through address comparison

Details Countering spam through address comparison Countering spam through address comparison

2011-07-05

2011-07-05

Divecha, Kamal B (Department: 2451)

Electrical computers and digital processing systems: multicomput

Computer conferencing

Demand based messaging

C709S205000, C709S207000, C726S011000, C726S013000, C726S022000, C726S026000, C707S999010, C707S999107

Reexamination Certificate

active

07975010

ABSTRACT:
Computer implemented methods, apparati, and computer readable media for determining whether an electronic message (30) is likely to contain spam. A method embodiment of the present invention comprises the steps of comparing (11) addresses associated with the electronic message (30) with addresses in an address book (21) of a recipient (20) of the electronic message (30); counting (12) instances for which an address associated with the electronic message (30) matches an address in the address book (21); and determining (13) whether spam is likely present in the electronic message (30) by calculating whether a pre-selected condition (70) is satisfied, said pre-selected condition (70) being based upon a count of said matches and at least one predetermined threshold (80).

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