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System, method and computer program to block spam

  • US 20050204159A1
  • Filed: 03/09/2004
  • Published: 09/15/2005
  • Est. Priority Date: 03/09/2004
  • Status: Abandoned Application
First Claim
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1. A method of blocking unwanted e-mails, said method comprising the steps of:

  • identifying an e-mail as unwanted;

    determining a source IP address of the unwanted e-mail;

    determining other source IP addresses owned or registered by an owner or registrant of the source IP address of said unwanted e-mail; and

    subsequently blocking e-mails from said source IP address and said other IP addresses.

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