| 摘要 |
PURPOSE:To acquire a coding information class receptible by a recipient automatically without manual intervention by offering a coding information class capable of being sent depending on a percussion service based on a percussion request from a terminal equipment and allowing a distribution means at a receiver side to inform the receptible coding information class to a sender side. CONSTITUTION:A user (terminal equipment) 1 of the electronic mail communication processing system at a sender side uses a percussion request reception means 4 in the case of sending an electronic mail to a destination receiver and the receiver requests the acquisition of a receptible coding information class. A percussion generating transmission request means 6 generates other parameter than a percussion MPDU and makes a transmission request of the percussion MPDU to an electronic mail transmission reception simultaneous control means 13. A receptible coding information class write means 9 references a receptible coding information class of the receiver registered in advance by a coding information class registration means 3, selects a proper coding information class from the coding information class offered by a sender, writes it into supplement information in a distribution report MPDU and inputs the result to a distribution report generating transmission means 10.
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