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Re: [imapext] List of Client Capabilities

Ken Murchison <murch@fastmail.com> Tue, 17 January 2023 11:45 UTC

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To: imapext@ietf.org
References: <100778751797816320.0.v2@titan.email>
From: Ken Murchison <murch@fastmail.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/imapext/83hVM13rbguaFnzq1BVU81APKi0>
Subject: Re: [imapext] List of Client Capabilities
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I'm not aware of a client capabilities list, but if I were going to 
start an IMAP server from scratch, I would start with IMAP4rev2 
(RFC9051), which incorporates a lot of the most useful extensions and 
also suggests 2 others worth implementing in Appendix F.


On 1/17/23 4:15 AM, Shikhar S wrote:
> I am working on implementing an IMAP Server and wanted to prioritise 
> and decide which extensions to support.
> I was not able to find anything online on which clients support which 
> extensions. Kind of a CAPABILITIES command listing for major clients.
> Having that information and mapping them with distribution of our 
> users across IMAP clients will help us to prioritise which extensions 
> to design for.
>
> I know the hard way to do it, by actually trying out most popular 
> clients. Which we will eventually surely do, but for now, warm regards 
> if any of you have or can point me to some relevant info.
>
> Thanks,
> Shikhar,
> Lead Engineer, titan.email
>
> _______________________________________________
> imapext mailing list
> imapext@ietf.org
> https://www.ietf.org/mailman/listinfo/imapext

-- 
Kenneth Murchison
Senior Software Developer
Fastmail US LLC

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