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System and method for confirming that the origin of an electronic mail message is valid

  • US 20060168028A1
  • Filed: 12/16/2004
  • Published: 07/27/2006
  • Est. Priority Date: 12/16/2004
  • Status: Active Grant
First Claim
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1. A method for confirming the origin of an electronic mail message, comprising:

  • receiving said electronic mail message at an electronic mail checking server;

    obtaining from said electronic message, responsive to said electronic mail message and an indication that said electronic mail message is confirmable, an origin confirmation field, a sender identifier identifying a sending system from which said electronic mail message was originated, and a source domain;

    generating an origin confirmation request message including said origin confirmation field and said sender identifier;

    transmitting said origin confirmation request message to a domain confirmation server associated with said source domain; and

    in the event that, within a predetermined time period after said transmitting of said origin confirmation request message, no origin confirmation message indicating that said received electronic mail message corresponding to said confirmation field was transmitted by said sending system, generating an error indication.

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