[Dovecot] Manual thread breaking from Thunderbird

[rosenfield.albert at gmail.com]

> That could be one use case, but since no clients do that I doubt it's a
>  very useful one for a while. :) I'm mostly thinking about using virtual
>  mailboxes for custom webmails, at least initially.

;-)..
I find it to be a problem that you're the one who decides what it's
useful for and what it's not :-P.

>  > Is it possible to ask Dovecot via IMAP to look for other things in the
>  > virtual folder, for example all items with the flag "huey lewis"
>  > applied?
>
> Yes (other than spaces not being allowed in flags). It's built using a
>  fully functional IMAP SEARCH query.
>
>  > Is this sort of query fast / indexed?
>
> Current implementation is a bit slow, but in future it will be fast.

So at what point will it be possible to have Dovecot index whatever
the client asks it to index? :-)