E-mail transmission method, e-mail approval program and e-mail sending program, e-mail approval equipment and e-mail transmission device, as well as e-mail transmission system

摘要

To prevent the leakage of information by electronic mail containing the challenge] important information, and can send only e-mail that have received approval by the approval authority. Is to provide an electronic mail system which can easily be introduced using a mail server and mailer generic and also supports e-mail e-mail, the Web mail or the like using an encryption particular. and a determination is made of the necessity of approval for e-mail [MEANS FOR SOLVING PROBLEMS] was sent by the sender, if approval is required, e-mail of approval request is forwarded to the approver with the approval authority of the transmission. If the approver approves the sending, approval notice was given the password that was generated from the digest of mail body, such as the sender is sent, the sender to send mail by attaching the password. And generating a password from the mail text and the like, transmission is possible by determining if it matches the password is attached, that no falsification is made at the time of transmission. [Selection Figure Figure 2