Apparatus and method for handling electronic mail

Details Apparatus and method for handling electronic mail Apparatus and method for handling electronic mail

2007-10-22

2009-11-24

Gilles, Jude J Jean (Department: 2443)

Electrical computers and digital processing systems: multicomput

Computer conferencing

Demand based messaging

C709S203000, C709S207000, C709S218000, C709S223000, C709S224000, C709S225000, C709S227000, C709S229000, C707S793000

Reexamination Certificate

active

07624154

ABSTRACT:
A mail transfer agent adapted for determining the disposition of incoming e-mail from a sender includes a penalty count filter module (20which functions on the basis of current communication system resource usage, such as the number of concurrent TCP connections being maintained, and penalty counts assigned for cumulative undesirable sender activity such as sending large e-mail files. The penalty count filter module can operate in a selective-rejection state accepting e-mail from senders without a penalty count and randomly accepting other e-mail, and in a random-rejection state rejecting all e-mail from senders with a penalty count and randomly rejecting other e-mail. The rejection rates can be increased or decreased in response to a detected increase or decrease in the usage of system resources.

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Sep. 15, 2008 European Patent Office, Supplementary European Search Report, Application No. EP 02 74 1005, Apr. 25, 2007, 2 pages.

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