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[mailmaint] Re: Call for Adoption: IMAP Extensions Suggestions

Daniel Eggert <deggert@apple.com> Mon, 04 August 2025 09:01 UTC

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From: Daniel Eggert <deggert@apple.com>
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Date: Mon, 04 Aug 2025 11:00:58 +0200
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To: Timo Sirainen <timo@sirainen.com>
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Subject: [mailmaint] Re: Call for Adoption: IMAP Extensions Suggestions
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> Den 28. jul. 2025 kl. 17.27 skrev Timo Sirainen <timo@sirainen.com>:
> 
> On 26. Jul 2025, at 11.00, Alexey Melnikov <alexey.melnikov@isode.com <mailto:alexey.melnikov@isode.com>> wrote:
>> 
>> On 25/07/2025 07:57, Alexey Melnikov wrote:
>> 
>>> On 24/07/2025 16:29, Kenneth Murchison wrote:
>>> 
>>>> Hello All,
>>>> 
>>>> This email starts a two week Call For Adoption for https://datatracker.ietf.org/doc/draft-rjbs-mailmaint-imap-extensions-suggestions/ as a starting point for a WG document.
>>>> 
>>>> Please respond with your feedback, whether positive or negative, by August 8, 2025.
>>> I support WG adoption for this document.
>>> 
> 
> I support also.
> 
>> In Section 6 the draft currently says:
>> 
> ..and if we're already talking about its contents, I would differentiate recommendations for clients using local caches vs not, in whatever words would make sense. PREVIEW and MULTISEARCH especially are something I don't see many non-webmail clients implementing. (Also, personally I've always disliked MULTISEARCH. In Dovecot we instead just search using Virtual All mails folder.)

In order for MULTISEARCH to be truly useful for us, we’d need to be able to exclude UID range _per mailbox_ — in order to exclude those messages that we do have locally. And additionally combine it with PARTIAL in order to limit the results (per mailbox?).

For example, exclude UID 76725:169272 for INBOX and exlclude 211779:225591 for “Foo”.

/Daniel

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