Electronic mail system, electronic mail transmission/reception method, and recording medium electronic mail transmission/reception program is recorded

摘要

The objective of the present invention is to provide an electronic mail system, where opening electronic mail with permission is performed at a designated date only on request for permission to open. In the electronic mail system, a terminal on the transmission side attaches a designated date indicating when opening the electronic mail is allowed, transmitting the electronic mail with the attachment to a server on the transmission side. The server on the transmission side attaches a program used to delete electronic mail, to the electronic mail received, transmitting the electronic mail with the attachment. A server on the receiving side, which has received the electronic mail from the server on the transmission side, saves the electronic mail and transmits it to a terminal on the receiving side. The terminal on the receiving side either opens the electronic mail if the current date is equal to the designated date of opening, or executes the program attached to the electronic mail, if otherwise, so that the electronic mail is deleted, on request for permission to open. The status that the mail has been deleted is informed to the server on the receiving side. The server on the receiving side transmits the saved electronic mail, again.