[Dovecot] overnight clients causing lockfiles to be converted to root-owned messages on debian lenny

[Brett Dikeman]

On Wed, Apr 22, 2009 at 3:38 PM, Timo Sirainen <tss at iki.fi> wrote:
> On Wed, 2009-04-22 at 15:23 -0400, Brett Dikeman wrote:
>> Apr 22 00:08:34 host dovecot: IMAP(user): Fixed a duplicate:
>> 1240289413.9181_0.host:2,S.lock -> 1240373314.P6717Q0M159857.host
>
> Something's very wrong if .lock files are created to Maildir mail files.
> It looks as if the Maildir is somehow being used as a mbox or something
> else is very weird. Try to figure out what is creating those .lock
> files..

The only things we have that touch mail on that system are dovecot and
procmail.  We don't export /var/spool/mail, and this is a pretty
minimal debian system install.  Ie, no funky desktop indexing programs
or the like.

The users affected have no immediate commonalities- no common clients,
most are IMAP but 1-2 are POP, some were logged out after timeout
while others logged out properly, etc.

The lock files are one possible problem, but it is a HUGE problem that
Dovecot is converting them into root-owned zero-length emails!

Brett