Enhanced Mail System Status Codes
RFC 3463, “Enhanced Mail System Status Codes”, is a Draft Standard document published in January 2003 by G. Vaudreuil. It obsoletes RFC 1893. It has since been updated by RFC 3886, RFC 4468, RFC 4865, RFC 4954, RFC 5248. The canonical text is published by the RFC Editor.
Abstract
This document defines a set of extended status codes for use within the mail system for delivery status reports, tracking, and improved diagnostics. In combination with other information provided in the Delivery Status Notification (DSN) delivery report, these codes facilitate media and language independent rendering of message delivery status. [STANDARDS-TRACK]
What “Draft Standard” means
A historical maturity level (retired in 2011) that sat between Proposed Standard and Internet Standard and required multiple interoperable implementations.
The canonical text of RFC 3463 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 3462 The Multipart/Report Content Type for the Reporting of Mail System Administrative Messages
- RFC 3464 An Extensible Message Format for Delivery Status Notifications
- RFC 3461 Simple Mail Transfer Protocol Service Extension for Delivery Status Notifications
- RFC 3465 TCP Congestion Control with Appropriate Byte Counting
- RFC 3460 Policy Core Information Model Extensions
- RFC 3466 A Model for Content Internetworking
- RFC 3459 Critical Content Multi-purpose Internet Mail Extensions Parameter
- RFC 3467 Role of the Domain Name System