[Dovecot] 1.2.11, mbox, new mail

[Timo Sirainen]

On pe, 2010-05-28 at 16:00 -0500, Stan Hoeppner wrote:
> > If non-Dovecot MUAs modify mbox simultaneously (except appends by MDA
> > are ok), Dovecot might not notice those changes immediately and it might
> > log some errors sometimes.
> 
> So it's the same caveat as with mbox_dirty_syncs = yes.  If the caveats are
> the same, why do both settings exist, given that mbox_very_dirty_syncs=yes
> yields superior performance?  Is there more potential danger with
> mbox_very_dirty_syncs?  That was the impression I had, thus why I was using
> the "milder" setting.

With mbox_dirty_syncs it eventually notices the changes the next time
the mailbox is SELECTed. But that's of course slow. The default behavior
is similar to UW-IMAP's, that's the main reason the very dirty syncs
isn't enabled by default.