A mail transmission/reception system, in which a user on the transmitting end, who wishes to revise or delete a print mail mistakenly sent to a remote user, can transmit a cancel mail to the destination address of the same remote user to have the specified print mail deleted on the remote user's computer...http://www.google.es/patents/US6310694?utm_source=gb-gplus-sharePatente US6310694 - Mail transmission system with cancel mail sending function
Mail transmission system with cancel mail sending function
