RFC 2531 · PROPOSED STANDARD · 1999
WED · 29 JUL 2026
Content Feature Schema for Internet Fax
Overview
RFC 2531, “Content Feature Schema for Internet Fax”, is a Proposed Standard document published in March 1999 by G. Klyne, L. McIntyre. It has been obsoleted by RFC 2879 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This document defines a content feature schema that is a profile of the media feature registration mechanisms for use in performing capability identification between extended Internet fax systems. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
The canonical text of RFC 2531 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1999
- RFC 2530 Indicating Supported Media Features Using Extensions to DSN and MDN
- RFC 2532 Extended Facsimile Using Internet Mail
- RFC 2529 Transmission of IPv6 over IPv4 Domains without Explicit Tunnels
- RFC 2533 A Syntax for Describing Media Feature Sets
- RFC 2528 Internet X.509 Public Key Infrastructure Representation of Key Exchange Algorithm Keys in Internet X.509 Public Key Infrastructure Certificates
- RFC 2534 Media Features for Display, Print, and Fax
- RFC 2527 Internet X.509 Public Key Infrastructure Certificate Policy and Certification Practices Framework
- RFC 2535 Domain Name System Security Extensions