Gateways and MIME Security Multiparts

(IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet-Drafts. Internet-Drafts are draft documents valid for a maximum of six months. Internet-Drafts may be updated, replaced, or obsoleted by other documents at any time. It is not appropriate to use Internet-Drafts as reference material or to cite them other than as a "working draft" or "work in progress". To learn the current status of any Internet-Draft, please check the 1id-abstracts.txt listing contained in the Internet-Drafts Shadow Directories on ds.internic.net (US East Coast), nic.nordu.net (Europe), ftp.isi.edu (US West Coast), or munnari.oz.au (Pacific Rim). The current draft of this memo reflects comments received during the last call period. In particular, a reference to RFC 2119 has been added, as have some directives on how to handle character sets with embedded language tagging facilities. 1. Abstract This document examines the problems associated with use of MIME security multiparts and gateways to non-MIME environments. A set of requirements for gateway behavior are defined which provide satisfactory facilities to accomodate the transfer of security multiparts through gateways.