ELECTRONIC MAIL ENCRYPTION SYSTEM AND ELECTRONIC MAIL ENCRYPTION PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide an electronic mail encryption system which allows the risk of leakage of information stored in an electronic mail to be reduced when a text and an attached file of the electronic mail are automatically enciphered and transmitted.;SOLUTION: This electronic mail encryption system is constituted so as to freely communicably connect to an internal mail server 4 which transmits and receives a mail to and from an internal client 3, an mail encryption server 1 which enciphers the mail, and an external mail server 5 which transmits and receives the mail to and from an external client 7, wherein an encryption mail transmission means 11 of the mail encryption server 1 includes a means for enciphering the mail by making a fixed password obtained from a storage device 2 or a generation password generated from the fixed password into a cryptographic key when the mail is received from the internal mail server 4, and a means for setting a transmission source different from the internal client 3 and generating a notification mail which notifies a part of the fixed password, or the generation password, etc.;COPYRIGHT: (C)2009,JPO&INPIT