MAIL SERVER DEVICE, CONTROL METHOD FOR MAIL SERVER DEVICE, AND PROGRAM

PROBLEM TO BE SOLVED: To prevent a risk of unauthorized use caused by leakage of a mail address.SOLUTION: A mail server device comprises: a mail delivery unit (17) that attaches a mail address of a sender to the header of an E-mail to be received by a receiver and delivers the E-mail from the sender...

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1. Verfasser: SASAO TERUAKI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To prevent a risk of unauthorized use caused by leakage of a mail address.SOLUTION: A mail server device comprises: a mail delivery unit (17) that attaches a mail address of a sender to the header of an E-mail to be received by a receiver and delivers the E-mail from the sender to the receiver; a protection mail address recording unit (13) that causes the mail address of the sender to correspond to a sender protection mail address concealing the mail address of the sender and stores both mail addresses; a protection mail address acquisition unit (18) that acquires the sender protection mail address from the protection mail address recording unit on the basis of the mail address of the sender when the mail delivery unit delivers the E-mail from the sender to the receiver; and a mail header rewriting unit (19) that rewrites the mail address of the sender attached to the header of the E-mail to be received by the receiver into the sender protection mail address acquired by the protection mail address acquisition unit.SELECTED DRAWING: Figure 10 【課題】メールアドレスの漏洩に基づく不正使用のリスクを防止する。【解決手段】受取人が受信する電子メールのヘッダに差出人のメールアドレスを付して差出人から前記受取人へ向けて電子メールを配送するメール配送部(17)と、差出人のメールアドレスと、差出人のメールアドレスを秘匿する差出人用保護メールアドレスとを対応付けて格納する保護メールアドレス記録部(13)と、メール配送部が差出人から受取人へ向けて電子メールを配送するとき、該差出人のメールアドレスに基づいて、差出人用保護メールアドレスを、保護メールアドレス記録部から取得する保護メールアドレス取得部(18)と、受取人が受信する電子メールのヘッダに付された差出人のメールアドレスを、保護メールアドレス取得部が取得した差出人用保護メールアドレスに書き換えるメールヘッダ書き換え部(19)と、を備える。【選択図】図10