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Securing email conversations

  • US 8,930,689 B2
  • Filed: 09/28/2011
  • Issued: 01/06/2015
  • Est. Priority Date: 09/28/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • determining that at least a portion of a transmission of an outgoing first email from a first email account to at least a second email account is to be encrypted, wherein the first email is to be sent by a first email server associated with the first email account and the second email account is associated with a different second email server;

    changing a reply-to address included in the first email and corresponding to the second email account to an address associated with an intermediate device, wherein replies to the first email, intended for delivery to the second email account, are to be sent to the intermediate device prior to being routed to the second email server for delivery to the second email account based on the changed reply-to address to apply encryption to replies to the first email, replies to the first email sent to the intermediate device are sent over encrypted channels, and replies to the first email routed from the intermediate device to the second email server are sent over encrypted channels; and

    causing at least a portion of a transmission of the first email to be encrypted and sent to the second email account with the changes to the reply-to address.

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