[Technical Errata Reported] RFC7162 (5055)

RFC Errata System <[email protected]> Wed, 28 Jun 2017 04:16:43 -0700 (PDT)
Newsgroups gmane.ietf.imapext
Message-ID <[email protected]>
The following errata report has been submitted for RFC7162,
"IMAP Extensions: Quick Flag Changes Resynchronization (CONDSTORE) and Quick Mailbox Resynchronization (QRESYNC)".

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You may review the report below and at:
http://www.rfc-editor.org/errata/eid5055

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Type: Technical
Reported by: Dirkjan Ochtman <[email protected]>

Section: 3.1.2.1

Original Text
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   C: A142 SELECT INBOX
   S: * 172 EXISTS
   S: * 1 RECENT
   S: * OK [UNSEEN 12] Message 12 is first unseen
   S: * OK [UIDVALIDITY 3857529045] UIDs valid
   S: * OK [UIDNEXT 4392] Predicted next UID
   S: * FLAGS (\Answered \Flagged \Deleted \Seen \Draft)
   S: * OK [PERMANENTFLAGS (\Deleted \Seen \*)] Limited
   S: * OK [HIGHESTMODSEQ 715194045007]
   S: A142 OK [READ-WRITE] SELECT completed

Corrected Text
--------------
   C: A142 SELECT INBOX
   S: * 172 EXISTS
   S: * 1 RECENT
   S: * OK [UNSEEN 12] Message 12 is first unseen
   S: * OK [UIDVALIDITY 3857529045] UIDs valid
   S: * OK [UIDNEXT 4392] Predicted next UID
   S: * FLAGS (\Answered \Flagged \Deleted \Seen \Draft)
   S: * OK [PERMANENTFLAGS (\Deleted \Seen \*)] Limited
   S: * OK [HIGHESTMODSEQ 715194045007] Ok
   S: A142 OK [READ-WRITE] SELECT completed

Notes
-----
RFC 7162 purports to extend RFC 3501 by adding the HIGHESTMODSEQ value as an option for the resp-text-code syntax. However, RFC 3501 only uses resp-text-code in the resp-text ABNF production, in which case it is always followed by a single space ("SP") and the "text" non-terminal, which expands to "1*TEXT-CHAR", as in non-empty text. As such, having a response code without any human-readable text suffix is illegal per the RFC 3501 spec, and the examples should be updated to be correct.

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RFC7162 (draft-ietf-qresync-rfc5162bis-10)
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Title               : IMAP Extensions: Quick Flag Changes Resynchronization (CONDSTORE) and Quick Mailbox Resynchronization (QRESYNC)
Publication Date    : May 2014
Author(s)           : A. Melnikov, D. Cridland
Category            : PROPOSED STANDARD
Source              : IMAP QRESYNC Extension
Area                : Applications
Stream              : IETF
Verifying Party     : IESG

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