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[Extra] Some comments on draft-ietf-extra-imap-64bit

Stephan Bosch <stephan@rename-it.nl> Fri, 15 September 2017 16:07 UTC

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To: Alexey Melnikov <alexey.melnikov@isode.com>
From: Stephan Bosch <stephan@rename-it.nl>
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Date: Fri, 15 Sep 2017 18:06:56 +0200
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Subject: [Extra] Some comments on draft-ietf-extra-imap-64bit
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Hi,

I gave draft-ietf-extra-imap-64bit a quick look. I have a few comments 
on the syntax specification.

First of all, the elements fetch-att, msg-att-static, and search-key are 
just copy-pasted from RFC 3501. Those are meant to have number64 instead.

I wonder whether it would be a good idea to have intermediary elements 
called e.g. `msg-size = number64' and `msg-lines = number64', so that 
future changes/extensions to the message size and line count syntax 
aren't such a pain anymore.

The "capability" syntax element is not extended (arguably not all 
specifications do this).

Finally, the following IMAP capabilities have syntax that is affected by 
this extension:

QUOTA - https://www.ietf.org/rfc/rfc2087.txt
BINARY - https://www.ietf.org/rfc/rfc3516.txt (not only literal8)
URL-PARTIAL - https://www.ietf.org/rfc/rfc5550.txt -> 
https://www.ietf.org/rfc/rfc5092.txt (partial-range)
APPENDLIMIT - https://www.rfc-editor.org/rfc/rfc7889.txt


Regards,

Stephan.

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