RFC 2303 · PROPOSED STANDARD · 1998
WED · 29 JUL 2026
Minimal PSTN address format in Internet Mail
Overview
RFC 2303, “Minimal PSTN address format in Internet Mail”, is a Proposed Standard document published in March 1998 by C. Allocchio. It has been obsoleted by RFC 3191 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
This memo describes the MINIMAL addressing method to encode PSTN addresses into e-mail addresses and the standard extension mechanism to allow definition of further standard elements. [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 2303 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1998
- RFC 2304 Minimal FAX address format in Internet Mail
- RFC 2302 Tag Image File Format - image/tiff MIME Sub-type Registration
- RFC 2305 A Simple Mode of Facsimile Using Internet Mail
- RFC 2301 File Format for Internet Fax
- RFC 2306 Tag Image File Format - F Profile for Facsimile
- RFC 2300 Internet Official Protocol Standards
- RFC 2307 An Approach for Using LDAP as a Network Information Service
- RFC 2308 Negative Caching of DNS Queries