RFC 3503 · PROPOSED STANDARD · 2003

Message Disposition Notification profile for Internet Message Access Protocol

Overview

RFC 3503, “Message Disposition Notification profile for Internet Message Access Protocol”, is a Proposed Standard document published in March 2003 by A. Melnikov. The canonical text is published by the RFC Editor.

Abstract

The Message Disposition Notification (MDN) facility defined in RFC 2298 provides a means by which a message can request that message processing by the recipient be acknowledged as well as a format to be used for such acknowledgements. However, it doesn't describe how multiple Mail User Agents (MUAs) should handle the generation of MDNs in an Internet Message Access Protocol (IMAP4) environment. This document describes how to handle MDNs in such an environment and provides guidelines for implementers of IMAP4 that want to add MDN support to their products. [STANDARDS-TRACK]

Abstract as published in the RFC, via rfc-editor.org.

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 3503 is hosted at rfc-editor.org. Available in TXT,HTML.

Other RFCs from 2003

Who Is Online

In total there are 37 users online: 0 registered, 33 guests and 4 bots.

Most users ever online was 1,226 on 13 Jun 2026, 3:56 am.

Bots: Applebot Other Bot Other Spider SemrushBot

Users active in the past 15 minutes. Total registered members: 354