Internet-Draft IMAP OBJECTID Partial July 2025
Gondwana Expires 24 January 2026 [Page]
Workgroup:
Network Working Group
Internet-Draft:
draft-gondwana-mailmaint-imap-objectid-partial-00
Updates:
RFC8474 (if approved)
Published:
Intended Status:
Standards Track
Expires:
Author:
B. Gondwana
Fastmail Pty Ltd

IMAP OBJECTID Partial Implementation extention

Abstract

This document extends the IMAP OBJECTID specification in RFC8474 describes persistent identifiers for Mailboxes, Emails, and Threads in email.

Some servers may be unable to provide persistent identifiers for one of these but be able to provide data for others, so this extension allows a server to specify that it can provide some reliable ids without needing to implement all data types.

Status of This Memo

This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79.

Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet-Drafts is at https://datatracker.ietf.org/drafts/current/.

Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress."

This Internet-Draft will expire on 24 January 2026.

Table of Contents

1. OBJECTID=MAILBOX

If a server has the capability OBJECTID=MAILBOX then it supports the objectids for mailboxes described in [OBJECTID] section 4.

2. OBJECTID=EMAILID

If a server has the capability OBJECTID=EMAILID then it supports the objectids for emails (and optionally threads) described in [OBJECTID] sections 5 and 6.

3. Supporting multiple datatypes

An implementation which supports both MAILBOXID and EMAILDID SHOULD only issue the capability OBJECTID as defined in [OBJECTID]. Clients MUST accept any combination of capabilities to decide which requests to send.

4. IANA considerations

IANA is asked to register the capabilities OBJECTID=MAILBOX and OBJECTID=EMAILID with a reference to this document.

5. Security considerations

This document does not introduce any security considerations beyond those described in [OBJECTID].

6. Acknowledgements

Daniel Eggert, Ken Murchison, Matt Diephouse, the bar at Melia Castilla in Madrid.

7. Normative References

[OBJECTID]
Gondwana, B., Ed., "IMAP Extension for Object Identifiers", RFC 8474, DOI 10.17487/RFC8474, , <https://www.rfc-editor.org/rfc/rfc8474>.

Appendix A. Changes from Earlier Versions

[[This section to be removed by RFC Editor]]

Appendix B. draft-gondwana-imap-objectid-partial

Author's Address

Bron Gondwana
Fastmail Pty Ltd
Level 2, 114 William Street
3000
Australia