RFC 2195 · PROPOSED STANDARD · 1997
SUN · 14 JUN 2026
IMAP/POP AUTHorize Extension for Simple Challenge/Response
Overview
RFC 2195, “IMAP/POP AUTHorize Extension for Simple Challenge/Response”, is a Proposed Standard document published in September 1997 by J. Klensin, R. Catoe, P. Krumviede. It obsoletes RFC 2095. The canonical text is published by the RFC Editor.
Abstract
This specification provides a simple challenge-response authentication protocol that is suitable for use with IMAP4. [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 2195 is hosted at rfc-editor.org. Available in TXT,HTML.
Relationships to other RFCs
Other RFCs from 1997
- RFC 2194 Review of Roaming Implementations
- RFC 2196 Site Security Handbook
- RFC 2193 IMAP4 Mailbox Referrals
- RFC 2197 SMTP Service Extension for Command Pipelining
- RFC 2192 IMAP URL Scheme
- RFC 2198 RTP Payload for Redundant Audio Data
- RFC 2191 VENUS - Very Extensive Non-Unicast Service
- RFC 2190 RTP Payload Format for H.263 Video Streams