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        RFC 1343:

        Title:      A User Agent Configuration Mechanism
                    For Multimedia Mail Format Information
        Author:     N. Borenstein
        Mailbox:    nsb@bellcore.com
        PS-Pages:   10           ASCII-Pages:   10
        PS-Characters:   59,978  ASCII-Characters:  29,295
        Obsoletes/Updates: none


This memo suggests a file format to be used to inform multiple mail
reading user agent programs about the locally-installed facilities for
handling mail in various formats.  The mechanism is explicitly
designed to work with mail systems based Internet mail as defined by
RFC's 821, 822, 934, 1049, 1113, and the Multipurpose Internet Mail
Extensions, known as MIME.  However, with some extensions it could
probably be made to work for X.400-based mail systems as well.  The
format and mechanism are proposed in a manner that is generally
operating-system independent.  However, certain implementation details
will inevitably reflect operating system differences, some of which
will have to be handled in a uniform manner for each operating system.
This memo makes such situations explicit, and, in an appendix,
suggests a standard behavior under the UNIX operating system.

This memo provides information for the Internet community.  It does
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Joyce K. Reynolds
USC/Information Sciences Institute