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Assured encrypted delivery

  • US 10,075,469 B1
  • Filed: 08/31/2015
  • Issued: 09/11/2018
  • Est. Priority Date: 08/31/2015
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • an email client executable by a processor of a computing device, the email client configured to receive instructions to transmit an email message from the computing device to a destination, the email client further configured to enable an encryption flag to be added to a header of the email message and specify a type of transport layer encryption, the encryption flag indicating to use the type of the transport layer encryption during transmission of the email message to the destination; and

    an email server including an interface for receiving the email message from the email client, the email server configured to detect the encryption flag and determine a path to the destination, the email server further configured to submit a request to a next email server along the path to determine whether the next email server supports use of the type of the transport layer encryption for transmission of the email message and guarantees transmission of the email message using the type of the transport layer encryption, the email server further configured to receive a response from the next email server and, if the next email server supports and guarantees use of the type of the transport layer encryption for the transmission of the email message, transmitting the email message to the next email server.

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