| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic mail-relaying device which enables a mail client side to recognize a result of verification, when an encoded signature mail is not perfectly decoded and the signature is not verified, and also enables a mail client side to decode a signature mail and verify the signature. SOLUTION: A mail gateway server 17, which relays electronic mails between a mail server 15 and a mail client 11, is provided with: a decoding part 23 which executes decoding processing to encoded signature mails received from the mail server 15; a report-generating part 26 which generates reports on the results of the decoding processing; and a transmission/distribution part 27 which regards the reports on the results of the decoding processing as the main bodies of mails and distributes the mails to the mail client 11, together with the original encoded signature mails as the attached files. COPYRIGHT: (C)2009,JPO&INPIT
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