|General Interworking: X.400 Message Access|
|Document Number: X98GM|
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X.400 Message Access
This Product Standard provides facilities for the construction of portable X.400 messaging systems (for example, electronic mail) by making the services of a message transfer system (MTS) available to applications implementing either a user agent (UA) or message store (MS).
Usage is not restricted to electronic mail applications since the interfaces and protocols may equally be used to convey messages containing arbitrary binary data; for example, Electronic Data Interchange (EDI).
Usage is not restricted to X.400 OSI networks as the programming interfaces are equally applicable to other protocols.
The Message Access (MA) interface as stated in the conformance clauses in the API to Electronic Mail (X.400) Specification1, Section 1.8, Conformance.
The conformance clauses also reference the OSI-Abstract-Data Manipulation API (XOM) Specification.2
C Language. Dialect ISO C. ISO C source programs invoking the services of this Product Standard must be supported by the registered product.
Products conforming to the X.400 Message Access Product Standard shall be available in a configuration that supports at least one of the following X.400 profiles:
Support for other protocols, for example, X.400 (1988), can be declared in the Conformance Statement.
XPG3 Internationalized System Calls and Libraries, Internationalized System Calls and Libraries, Internationalized System Calls and Libraries Extended, or Internationalized System Calls and Libraries Extended V2.
The test environment used must consist of two systems communicating using protocol stacks declared in the Conformance Statement.
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