Enhanced Mail System Status Codes
RFC 1893, “Enhanced Mail System Status Codes”, is a Proposed Standard document published in January 1996 by G. Vaudreuil. It has been obsoleted by RFC 3463 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
There currently is not a standard mechanism for the reporting of mail system errors except for the limited set offered by SMTP and the system specific text descriptions sent in mail messages. There is a pressing need for a rich machine readable status code for use in delivery status notifications [DSN]. This document proposes a new set of status codes for this purpose. [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.
The canonical text of RFC 1893 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 1892 The Multipart/Report Content Type for the Reporting of Mail System Administrative Messages
- RFC 1894 An Extensible Message Format for Delivery Status Notifications
- RFC 1891 SMTP Service Extension for Delivery Status Notifications
- RFC 1895 The Application/CALS-1840 Content-type
- RFC 1890 RTP Profile for Audio and Video Conferences with Minimal Control
- RFC 1896 The text/enriched MIME Content-type
- RFC 1889 RTP: A Transport Protocol for Real-Time Applications
- RFC 1897 IPv6 Testing Address Allocation