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Junk electronic mail detector and eliminator

  • US 20020198950A1
  • Filed: 04/10/2002
  • Published: 12/26/2002
  • Est. Priority Date: 11/25/1997
  • Status: Abandoned Application
First Claim
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1. A computer program product, comprising:

  • a computer storage medium and a computer program code mechanism embedded in the computer storage medium for causing a computer to process electronic mail messages, the computer program code mechanism comprising;

    a first computer code device configured to receive an incoming electronic mail message;

    a second computer code device configured to determine a candidate machine and a candidate user id of a purported sender of the incoming electronic mail message;

    a third computer code device configured to send a verification request to the candidate user id at the candidate machine;

    a fourth computer code device configured to receive a verification response to the verification request; and

    a fifth computer code device configured to block delivery of the incoming electronic mail message based on the verification response when the response indicates that the candidate machine does not exist.

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