| 摘要 |
A server device (20) which receives, from a channel, electronic mail including information of a transfer destination, an authentication number to an authentication device and data, responds to the electronic mail, requests authentication to the authentication device, and transfers the data to the transfer destination when the authentication number is confirmed by the authentication device. The server device (20) rejects the transfer of the data when the authentication number is not received by the server device (20), and sends a reply to that effect to the transmission source of the data by using electronic mail. Moreover, when the authentication number is not received by the server device (20), the server device (20) requests authentication to the authentication device by using a predetermined authentication number.
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