Message-Oriented Text Interchange System (MOTIS) is an ISO messaging standard based on the ITU-T X.400 standards.
It plays a similar role to the Simple Mail Transfer Protocol (SMTP) in the TCP/IP protocol suite.
References
- Halsall, Fred (1996). Data Communications, Computer Networks and Open Systems (4th ed.). Addison-Wesley. pp. 786–791. ISBN 0-201-42293-X.