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Foreign network SPAM blocker

  • US 7,155,608 B1
  • Filed: 12/05/2001
  • Issued: 12/26/2006
  • Est. Priority Date: 12/05/2001
  • Status: Expired due to Fees
First Claim
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1. A method for blocking unsolicited e-mail transmitted to an e-mail server at an Internet Service Provider (ISP), the method comprising:

  • receiving a user identification (USERID) and a password associated with a customer;

    retrieving a plurality of data associated with the customer based on the USERID and password;

    authenticating the customer using the retrieved plurality of data;

    dynamically adding an IP address assigned to the customer to a plurality of valid IP addresses associated with the ISP;

    receiving outgoing SMTP traffic from the customer;

    in response to receiving the outgoing SMTP traffic, determining, at the e-mail server, the e-mail server being configured to receive and maintain at least one e-mail, whether the customer is associated with a valid IP address; and

    in response to determining that the customer is associated with a valid IP address, logging the customer onto the e-mail server using the IP address and the plurality of data used to authenticate the customer, and sending the outgoing SMTP traffic to a recipient, wherein the outgoing SMTP traffic is sent to the recipient only in response to determining that the customer is associated with a valid IP address.

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