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Detecting spam messages using rapid sender reputation feedback analysis

  • US 7,937,468 B2
  • Filed: 07/06/2007
  • Issued: 05/03/2011
  • Est. Priority Date: 07/06/2007
  • Status: Active Grant
First Claim
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1. A network device for selectively managing delivery of messages over a network, comprising:

  • a transceiver to send and receive data over the network; and

    a processor that is operative to perform actions, including;

    receiving, from a user, a spam report indicating that a message sender is sending spam;

    determining a time in which the spam report is received;

    determining a total percent expected spam report rate based in part on the received spam report and the time using in part a reputation report rate prediction mechanism comprising a plurality of time buckets, each time bucket representing an expected percentage of spam reports to be received within a given time period;

    using the total percent expected spam report rate to statistically categorize a reputation of the message sender; and

    if the message sender is categorized as a spammer, performing an action to prevent another message being sent to the user from the message sender.

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