A TCPEmail system that builds an additional TCP/IP protocol layer on top of an electronic mail system. An application program uses TCPEmail in the conventional manner of using TCP/IP. The application program calls TCPEmail and passes the data to be sent. TCPEmail breaks the data into packets, converts...http://www.google.fr/patents/US6272549?utm_source=gb-gplus-shareBrevet US6272549 - Method for using electronic mail for exchanging data between computer systems
Method for using electronic mail for exchanging data between computer systems