RFC 2193 · PROPOSED STANDARD · 1997
SUN · 14 JUN 2026
IMAP4 Mailbox Referrals
Overview
RFC 2193, “IMAP4 Mailbox Referrals”, is a Proposed Standard document published in September 1997 by M. Gahrns. The canonical text is published by the RFC Editor.
Abstract
Mailbox referrals allow clients to seamlessly access mailboxes that are distributed across several IMAP4 servers. [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 2193 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 1997
- RFC 2192 IMAP URL Scheme
- RFC 2194 Review of Roaming Implementations
- RFC 2191 VENUS - Very Extensive Non-Unicast Service
- RFC 2195 IMAP/POP AUTHorize Extension for Simple Challenge/Response
- RFC 2190 RTP Payload Format for H.263 Video Streams
- RFC 2196 Site Security Handbook
- RFC 2189 Core Based Trees Multicast Routing -- Protocol Specification --
- RFC 2197 SMTP Service Extension for Command Pipelining