| 摘要 |
Systems and methods of conveying feedback concerning transmissions sent using a one-to-many protocol are disclosed. Such feedback includes information indicating whether a message was received by anyone, by whom, whether the message was accessed, and whether a receiver of the message has acknowledged the message. A receiver is configured to provide such feedback, either in response to receiving a request to send feedback, or automatically. The feedback is sent via the same communications channel the message was sent on, or via a different communications channel. A message's sender is informed that feedback has been received for a given message, and a searchable log is kept of the feedback.
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