{
  "draft": "draft-siemborski-rfc2554bis-09",
  "doc_id": "RFC4954",
  "title": "SMTP Service Extension for Authentication",
  "authors": [
    "R. Siemborski, Ed.",
    "A. Melnikov, Ed."
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "20",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "IETF - NON WORKING GROUP",
  "abstract": "This document defines a Simple Mail Transport Protocol (SMTP) extension whereby an SMTP client may indicate an authentication mechanism to the server, perform an authentication protocol exchange, and optionally negotiate a security layer for subsequent protocol interactions during this session. This extension includes a profile of the Simple Authentication and Security Layer (SASL) for SMTP.\n\n This document obsoletes RFC 2554. [STANDARDS-TRACK]",
  "pub_date": "July 2007",
  "keywords": [
    "simple mail transport protocol",
    "security layer",
    "sasl"
  ],
  "obsoletes": [
    "RFC2554"
  ],
  "obsoleted_by": [],
  "updates": [
    "RFC3463"
  ],
  "updated_by": [
    "RFC5248"
  ],
  "see_also": [],
  "doi": "10.17487/RFC4954",
  "errata_url": "https://www.rfc-editor.org/errata/rfc4954"
}