Importance

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Abstract

A network communication device is provided with e-mail message composing means and e-mail message transmitting/receiving means. The e-mail message composing means has functions of incorporating an MDN request and return transmission conditions into an e-mail message and of consolidating MDN responses for multiple received e-mail messages into a collective MDN response to compose a single e-mail message. The e-mail message transmitting/receiving means has a function of recognizing the MDN request and the return transmission conditions. The network communication device is further provided with: reception result monitoring means which monitors the reception of an e-mail message to see whether it is a success or failure and which composes an MDN response; and disposition notification controlling means which monitors return transmission conditions incorporated in a received e-mail message and which, if the return transmission conditions are met, instructs the e-mail message composing means to compose a collective MDN response and the e-mail message transmitting/receiving means to transmit the composed collective MDN response. Thus, the invention enables collective confirmation of MDN responses to multiple e-mail messages.

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First Claim