{
  "draft": "draft-ietf-vpim-cc-08",
  "doc_id": "RFC3459",
  "title": "Critical Content Multi-purpose Internet Mail Extensions (MIME) Parameter",
  "authors": [
    "E. Burger"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "24",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Voice Profile for Internet Mail",
  "abstract": "This document describes the use of a mechanism for identifying body parts that a sender deems critical in a multi-part Internet mail message.  The mechanism described is a parameter to Content-Disposition, as described by RFC 3204.  By knowing what parts of a message the sender deems critical, a content gateway can intelligently handle multi-part messages when providing gateway services to systems of lesser capability.  Critical content can help a content gateway to decide what parts to forward.  It can indicate how hard a gateway should try to deliver a body part.  It can help the gateway to pick body parts that are safe to silently delete when a system of lesser capability receives a message.  In addition, critical content can help the gateway chose the notification strategy for the receiving system.  Likewise, if the sender expects the destination to do some processing on a body part, critical content allows the sender to mark body parts that the receiver must process. [STANDARDS-TRACK]",
  "pub_date": "January 2003",
  "keywords": [
    "MIME",
    "Multi-purpose Internet Mail Extensions",
    "body parts",
    "content-disposition"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [
    "RFC3204"
  ],
  "updated_by": [
    "RFC5621"
  ],
  "see_also": [],
  "doi": "10.17487/RFC3459",
  "errata_url": null
}