DEVICE AND SYSTEM FOR REPEATING MAIL AND STORAGE MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide a mail repeating system which makes it possible to confirm that electronic mail is not opened. SOLUTION: A mail server when receiving electronic mail having the term of validity set on the sender's side transfers it to the mail server which control the receiver. The mail server holds the received electronic mail in SPOOL 121b, extracts the sender and the term of validity from the electronic mail, and stores them in a term management table 123b in the order of the end of the term. When there is an unopened mail even at the end of the term of validity, an unopened mail management part 124b adds notice information indicating that the electronic mail is unopened and the term of validity as an indefinite period to the electronic mail and sends them together to the sender.