RFC 5161 · PROPOSED STANDARD · 2008
WED · 17 JUN 2026
The IMAP ENABLE Extension
Overview
RFC 5161, “The IMAP ENABLE Extension”, is a Proposed Standard document published in March 2008 by A. Gulbrandsen, A. Melnikov. The canonical text is published by the RFC Editor.
Abstract
Most IMAP extensions are used by the client when it wants to and the server supports it. However, a few extensions require the server to know whether a client supports that extension. The ENABLE extension allows an IMAP client to say which extensions it supports. [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 5161 is hosted at rfc-editor.org. Available in TXT,HTML.
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