MIXER (Mime Internet X.400 Enhanced Relay): Mapping between X.400 and RFC 822/MIME
This document relates primarily to the ITU-T 1988 and 1992 X.400 Series Recommendations / ISO IEC 10021 International Standard. This ISO/ITU-T standard is referred to in this document as "X.400", which is a convenient shorthand. [STANDARDS-TRACK]