ELECTRONIC MAIL SENDING METHOD, ELECTRONIC MAIL SENDING PROGRAM, ELECTRONIC MAIL APPROVING PROGRAM, ELECTRONIC MAIL SENDING DEVICE, AND ELECTRONIC MAIL APPROVING/SENDING SYSTEM

摘要

[PROBLEMS] Only an electronic mail containing important information and approved by an approval authorized person can be sent so as to prevent information leakage. Especially, an electronic mail system which is adapted to electronic mails such as electronic mails using encryption and Web mails and can be easily introduced by using a general-purpose mailer and a mail server is provided. [MEANS FOR SOLVING PROBLEMS] It is judged whether an electronic mail sent by a sender must be approved or not. If it must be approved, a mail for approval request is transferred to an approver having a sending approval authority. If the approver approves the sending, an approval notification with a password created by the digest such as the mail text is sent to the sender, the sender sends the mail with the password. When the mail is sent, a password is created form the mail text. If the password agrees with the attached password, the mail is judged to be not falsely altered, and the mail can be sent.