RECIPIENT APPARATUS, FILE SERVER APPARATUS AND PROGRAM

摘要

A recipient apparatus and a file server apparatus respectively receive shared mails which are generated by performing secret sharing of an electronic mail from a sender apparatus by a mail server apparatus. The file server apparatus authenticates the recipient apparatus based on an account and transmits shared data to the recipient apparatus when authentication is successful. The recipient apparatus restores the electronic mail with the shared data and shared data in the shared mail which is previously received.