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System and method for handling electronic mail mismatches

  • US 8,473,561 B2
  • Filed: 11/08/2012
  • Issued: 06/25/2013
  • Est. Priority Date: 06/23/2006
  • Status: Active Grant
First Claim
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1. A method of locating a digital certificate, the method performed by a processor of a computing device, the method comprising:

  • identifying an e-mail address, said e-mail address consisting of a user name and a name of a first domain;

    performing a first search for one or more digital certificates associated with the e-mail address;

    upon determining that no digital certificates associated with the e-mail address consisting of the user name and the name of the first domain are found,truncating the name of the first domain to identify a name of a second domain, andperforming a second search for one or more digital certificates associated with an address consisting of the user name and the name of the second domain, wherein the first domain is a subdomain of the second domain; and

    processing a message using a located digital certificate associated with the address consisting of the user name and the name of the second domain.

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