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Systems and methods for automated exchange of electronic mail encryption certificates

  • US 7,664,947 B2
  • Filed: 10/12/2005
  • Issued: 02/16/2010
  • Est. Priority Date: 10/12/2005
  • Status: Active Grant
First Claim
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1. A communication method between a machine running an email client and its email firewall, the method comprising using the machine to:

  • generate an email message for a recipient;

    prior to sending the message to the firewall, automatically generate a query and send the query to a directory access proxy component of the firewall, the query requesting the proxy component to obtain a public encryption certificate corresponding to the recipient;

    receive the public encryption certificate from the proxy component;

    use the certificate to encrypt the email message; and

    send the encrypted email message to the firewall.

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