Communications of the ACM
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This paper describes the design and development of a software system for exchanging mail between a wide area network (BITNET) and individual personal computer users. Such users need network addresses in order to receive mail; this problem is considered and solved by splitting the user-id, so that a network user can send mail to a personal computer user at a simple address, “user-id@node-id”. Adoption of domain addresses is considered as an alternative method. There is also a description of an access validity mechanism for personal computers, which was developed because of the need to use public telephone lines.The system was installed at the Science University of Tokyo (SUT), and was evaluated by the faculty of Tokyo Denki University. The results of the evaluation are reported at the end of the paper.