RFC 8437 · PROPOSED STANDARD · 2018
SUN · 14 JUN 2026
IMAP UNAUTHENTICATE Extension for Connection Reuse
Overview
RFC 8437, “IMAP UNAUTHENTICATE Extension for Connection Reuse”, is a Proposed Standard document published in August 2018 by C. Newman. It updates RFC 3501. The canonical text is published by the RFC Editor.
Abstract
This specification extends the Internet Message Access Protocol (IMAP) to allow an administrative client to reuse the same IMAP connection on behalf of multiple IMAP user identities.
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 8437 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 2018
- RFC 8436 Update to IANA Registration Procedures for Pool 3 Values in the Differentiated Services Field Codepoints Registry
- RFC 8438 IMAP Extension for STATUS=SIZE
- RFC 8435 Parallel NFS Flexible File Layout
- RFC 8439 ChaCha20 and Poly1305 for IETF Protocols
- RFC 8434 Requirements for Parallel NFS Layout Types
- RFC 8440 IMAP4 Extension for Returning MYRIGHTS Information in Extended LIST
- RFC 8433 A Simpler Method for Resolving Alert-Info URNs
- RFC 8441 Bootstrapping WebSockets with HTTP/2