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System and method for preventing unnecessary message duplication in electronic mail

  • US 20030055903A1
  • Filed: 09/20/2001
  • Published: 03/20/2003
  • Est. Priority Date: 09/20/2001
  • Status: Active Grant
First Claim
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1. A method for an email server to reduce the unintended duplication of messages forwarded to an email recipient, comprising:

  • forming a first composite message comprising a first email message;

    computing and storing a first representative value for said first composite message;

    forming, after said first composite message, a second composite message comprising a second email message;

    computing a second representative value for said second composite message;

    comparing said first and second representative values;

    forwarding said second email message to an email recipient only if said first and second representative values do not indicate duplication; and

    discarding at least one stored representative value based on at least one predetermined criterion.

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