[dev] maildir support

[Chuck Hagenbuch]

Quoting Anil Madhavapeddy <anil@recoil.org>:

> Speed.
> 
> I tried out SqWebMail (which reads maildirs natively) on my
> biggest folder (openbsd-misc, with 25000+ messages in it), and it just
> ripped through it while IMP and Mutt were still chewing through headers.

Tradeoff: security. You're suddenly writing a piece of software which needs to 
run with root priviledges, instead of an IMAP client.

IMO, the best thing that could possibly happen for IMP is if we could go ahead 
and cache a hell of a lot more data with each session - and ideally make the 
IMAP connection persistant, but even just being able to cache some headers, the 
whole mailbox listing, and only update things when they actually change, would 
be a huge win.

-chuck

--
Charles Hagenbuch, <chuck@horde.org>
"If you can't stand the heat, get out of the chicken!" - Baby Blues