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Enhanced acknowledgment for messages

  • US 10,447,631 B2
  • Filed: 12/22/2015
  • Issued: 10/15/2019
  • Est. Priority Date: 03/06/2015
  • Status: Active Grant
First Claim
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1. A computer-implemented method for acknowledging delivery of a message, the method comprising:

  • receiving the message from a client;

    storing the message into a sent folder of a sender mailbox;

    sending the message using a direct delivery system configured to write the message in a recipient mailbox, wherein the direct delivery system is configured to expedite delivery of the message to the recipient mailbox by bypassing a queuing process;

    determining that the message was written in the recipient mailbox by the direct delivery system; and

    altering properties of the message that is stored in the sent folder of the sender mailbox in response to determining that the message was written in the recipient mailbox by the direct delivery system, wherein the altered properties indicate that the message was written in the recipient mailbox.

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