[mailmaint] Re: IMAP Extensions Suggestions revisions

[Ricardo Signes <[e-mail]>]

On Thu, Oct 2, 2025, at 16:26, N. Albert wrote:
> I agree with what a few others have already said. I haven't gotten 
> around to implementing MULTISEARCH yet, but it's on my list for server 
> and clients and I anticipate it will help a lot. I think it should stay, 
> at the very least in "further effective".

I have now moved this to the second section of "further extensions", as Matt D. suggested.

> I'm more surprised that NOTIFY is only in "further effective" instead of 
> "most effective", and slightly that SORT and THREAD aren't mentioned at 
> all though perhaps that's because they're not as key to performance.

It's a question of breadth of implementation, here, I think.  Very effective if found, not found all that often.

> There don't seem to be any distinctions drawn as far as extensions more 
> suited towards specific types of clients, but LIST-STATUS and 
> STATUS=SIZE are also big ones for online-only operation - though I'm not 
> sure how widely those have been implemented.

My notes from the original conversations that led to this document was that these were *already* widely implemented, *and* present in imap4rev2, so didn't need encouragement.  Easy enough to add if we want.  Other things in this bucket:  UIDPLUS.  Also, I see we had LITERAL± in that bucket, but it's not advertised by iCloud IMAP or GIMAP, which is presumably why it didn't make the cut.

-- 
rjbs