ELECTRONIC DATA ARRIVAL WARRANTEE METHOD, ELECTRONIC DATA RELAY SYSTEM AND PROGRAM RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To certify the fact for a 3rd party that a sender A transmitted electronic data to a recipient B and that the latter had the intention of receiving the electronic data. SOLUTION: A sender A transmits a transmission request, including electronic data and a name of a recipient B to a relay server 40, which stores the transmission request sheet and informs a recipient B of the storage of the electronic data addressed to the recipient B together with its identifier. The recipient B generates an acquisition application sheet and sends it to the server 40. The server 40 confirms that the acquisition application sheet is sent from the recipient B and a transmission destination of electronic data with the identifier matches the recipient B, stores the acquisition application sheet and transmits the electronic data designated by the identifier in the acquisition application sheet to the recipient B. The recipient B generates reception confirmation information, specifying the electronic data definitely and sends a receipt including the information and the identifier to the server 40, and the server 40 confirms that the reception confirmation information is identical to the electronic data designated by the identifier and stores the receipt.