The IESG has approved the following document: - 'IMAP Extension for object identifiers' (draft-ietf-extra-imap-objectid-08.txt) as Proposed Standard This document is the product of the Email mailstore and eXtensions To Revise or Amend Working Group. The IESG contact persons are Adam Roach, Alexey Melnikov and Ben Campbell. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-extra-imap-objectid/ Technical Summary This document updates RFC3501 (IMAP4rev1) with persistent identifiers on mailboxes and messages to allow clients to more efficiently re-use cached data when resources have changed location on the server. Working Group Summary The EXTRA WG meeting in IETF 101 had detailed discussion about this draft. The editor had updated it accordingly. Before WGLC, several experts reviewed the draft in detail. All identified issues were reflected in the new version of the draft. During WGLC, a minor issue was identified and fixed in the new version. The WG has looked throught this document in detail. Document Quality The document is in good shape and is ready to be published. The document is based on 2 similar private extensions by Gmail and Dovecot. The WG hopes to move this document quickly as IMAP4rev2 may want to include it. Personnel Document Shepherd - Jiankang Yao (EXTRA co-chair) Responsible Area Director - Alexey Melnikov