[Dovecot] New mailbox format

[Brian Bartholomew]

> If you are trying to tune for where there are significant numbers of
> very small (< 2k) files (well smaller than the typical block size in
> the underlying filesystem), you may be aiming too small.  It looks
> like the median file size in my maildir folders is about 3100 bytes.
> What sizes were you thinking the typical admin would set as the
> limit?
>
> Personally, I think your time would be better spent integrating a
> database message store and let the database engine deal with storage
> and indexing issues.  YMMV. ;-)

Reiserfs is designed to handle lots of very small files, and my
spam-quarantine dir with 26K files performs fine, too.  Maildir on
Reiser is a great combination for me.
							Brian