RFC 9586 · EXPERIMENTAL · 2024

IMAP Extension for Using and Returning Unique Identifiers Only

Overview

RFC 9586, “IMAP Extension for Using and Returning Unique Identifiers Only”, is an Experimental document published in May 2024 by A. Melnikov, A. P. Achuthan, V. Nagulakonda, A. Singh, L. Alves. The canonical text is published by the RFC Editor.

Abstract

The UIDONLY extension to the Internet Message Access Protocol (RFCs 3501 and 9051) allows clients to enable a mode in which information about mailbox changes is returned using only Unique Identifiers (UIDs). Message numbers are not returned in responses and cannot be used in requests once this extension is enabled. This helps both clients and servers to reduce resource usage required to maintain a map between message numbers and UIDs.

This document defines an experimental IMAP extension.

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

What “Experimental” means

Describes a specification that is part of a research or development effort, published so the community can gain experience with it.

Read this RFC

The canonical text of RFC 9586 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.

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