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Electronic mail relay apparatus, method of preventing reception of junk mail, and computer product

  • US 20030061291A1
  • Filed: 02/25/2002
  • Published: 03/27/2003
  • Est. Priority Date: 09/26/2001
  • Status: Abandoned Application
First Claim
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1. A method of preventing transmission of junk mail, the method comprising:

  • relaying an electronic mail from a transmitter to a recipient;

    sending a warning notice to the transmitter, when the recipient determines that the received electronic mail is a junk mail and sends a reception refusal notice; and

    issuing a penalty invoice notice to the transmitter, when the recipient sends the reception refusal notice for a particular number of times with respect to the same transmitter.

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