[Dovecot] messages downloading repeatedly to mozilla/seamonkey pop3 client

[Mark Sapiro]

On Sun, May 04, 2008 at 05:35:31PM +0300, Timo Sirainen wrote:
> Do you still have this problem? You could try setting mail_location
> explicitly to see if it changes anything
> (http://wiki.dovecot.org/MailLocation).
> 
> On Tue, 2008-03-11 at 17:25 -0400, Ben Julian wrote:
> > Timo,
> >   The user can't access the mailbox directly under normal use
> > circumstances.  He doesn't have a smb share setup to allow him access
> > to the mbox file.  As far as I know, the only program besides dovecot
> > doing editing of the mail is spamassassin, but that happens before the
> > mail is written to the mbox.  Perhaps I am misunderstanding your
> > question?
> > -Ben
> > 
> > On Mon, Mar 10, 2008 at 9:26 PM, Timo Sirainen <tss at iki.fi> wrote:
> > > On Wed, 2008-03-05 at 15:17 -0500, Ben Julian wrote:
> > >  > Mar  3 10:37:00 servername dovecot: POP3(user): mbox sync: UID
> > >  > inserted in the middle of mailbox /var/mail/user (84873 > 84872,
> > >  > seq=2, idx_msgs=3)
> > >
> > >  This is the main problem, these shouldn't happen. Can the user access
> > >  the mailboxes directly?
> > >
> > >  See http://wiki.dovecot.org/MboxProblems
> > >



This looks a lot like the issue I reported last month at
<http://dovecot.org/pipermail/dovecot/2008-April/029991.html>
which see for configuration details.

At that time, I thought the problem was due to a conflict between
Postfix adding a message to the mbox while dovecot was expunging
messages. I have since seen the problem one more time apparently
precipitated by two remote boxes accessing the same mailbox via
separate dovecot processes simultaneously.

I have since added

 pop3_lock_session = yes

to the dovecot configuration, and I have seen no further problems,
but it's only been 2 weeks since I made the above change so it's
too soon to know for sure.

-- 
Mark Sapiro mark at msapiro net       The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan