×

Reporting on spoofed e-mail

  • US 7,950,047 B2
  • Filed: 02/22/2008
  • Issued: 05/24/2011
  • Est. Priority Date: 02/22/2008
  • Status: Active Grant
First Claim
Patent Images

1. A method for use in managing delivery of messages over a network, comprising:

  • receiving a plurality of messages over the network;

    for each message in the plurality of messages;

    determining an outbound message server for the respective message by identifying a last hop network address as the outbound message server based on a last network hop of the message prior to being received by a message server associated with a message recipient;

    if the respective message is digitally signed, authenticating the respective message, at least by verifying that the digitally signed message originated from a domain associated with a sender'"'"'s address of the message by using a public component of a public/private key pair that is accessible to a domain name server (DNS) associated with the domain; and

    generating a report about the plurality of messages, wherein the report indicates for each outbound message server at least a number of messages that are digitally signed and authenticated, a number of messages that are unsigned, and a number of messages that are digitally signed but determined to be unauthentic based on the digital signature; and

    employing the report to selectively block messages allegedly from the domain associated with digitally signed messages.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×