interpersonal messaging (X.400) (IPM)
- Interpersonal Messaging (IPM) is an interpersonal messenger service of a Message Handling System( MHS) according to X.400, which enables communication among users. The IPM service makes use of application-neutral services with an Interpersonal Messaging System( IPMS) of the Message Transfer Service( MTS).
- Deutsche Telekom's product name for its application-oriented Interpersonal Messaging (IPM) service in the Telebox 400 system. The IPM service supports the electronic exchange of messages among users of the Telebox 400. Each user has his ownTelebox. With his user name and a personal password, he identifies himself to the system as an authorized user.