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Source reputation information system for filtering electronic messages using a network-connected computer

  • US 7,676,566 B2
  • Filed: 07/05/2007
  • Issued: 03/09/2010
  • Est. Priority Date: 05/25/2004
  • Status: Active Grant
First Claim
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1. A method of filtering incoming electronic messages from a computer network at a network-connected computer system, the method comprising:

  • receiving a delivery attempt for an incoming electronic message at a receiving server in the network-connected computer system;

    determining a source of the incoming electronic message;

    requesting a reputation profile for the source from a service in the computer network that is external to the receiving server and any terminals connected thereto for receiving incoming messages from the receiving server;

    receiving the reputation profile for the source at the network-connected computer system, the reputation profile based on reputation data for the source generated by a centralized electronic message traffic monitoring system evaluating messages after being sent from a sending server and before being received by the targeted receiving server; and

    deciding disposition of the delivery attempt for an incoming electronic message based on the reputation profile received from the service.

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