[Dovecot] Outlook 2003 and Thunderbird IMAP + gettingnew headers

[Jan van den Berg]

Im still trying to figure this problem. Because of other issues (non-dovecot 
related but application related) we had to revert back yesterday to 1.1rc3. 
This version has been running fine for 6 months.

But now I get quite a few of these errors in my logs I can't really explain 
them:

Log synchronization error at seq=2,offset=164 for 
/var/spool/mail/j/a/jan.vandenberg.isp/.Sentbox/dovecot.index: ext reset: 
invalid record size

This is something that happens since we reverted back:

Number of times this happens in our logs:
dovecot:2679 (so far, today)
dovecot.1:3184 (yesterday)
dovecot.2:0 (tuesday)
dovecot.3:0 (etc.)
dovecot.4:5
dovecot.5:7
dovecot.6:0
dovecot.7:1

We only ran 1.1.3 for a day or so (with zero of these errors occuring). 
Before that with 1.1rc3 we also had few of these errors. But now a couple of 
1000 a day. It is just a small percent of our total log file: but should I 
be worried and what is it?

Cheers,

Jan


----- Original Message ----- 
From: "Jan van den Berg" <jan.vandenberg at isp.solcon.nl>
To: "'Dovecot Mailing List'" <dovecot at dovecot.org>
Sent: Thursday, September 11, 2008 11:57 AM
Subject: Re: [Dovecot] Outlook 2003 and Thunderbird IMAP + gettingnew 
headers


> Hi,
>
> I dont do anything with the dovecot-uidlist.
>
> This is part of what the rawlog looks like (with a folder that started
> getting new headers):
>
> tbgy SELECT "My Folders.Klanten"
> rty3 UID FETCH 1668:* (UID FLAGS RFC822.SIZE BODY.PEEK[HEADER] 
> INTERNALDATE)
> 9d54 UID FETCH 1:1667 (UID FLAGS)
> 0ntr UID FETCH 1667 (UID FLAGS BODY.PEEK[] INTERNALDATE)
> znim IDLE
> DONE
> 4ogq UID FETCH 1668 (UID FLAGS BODY.PEEK[] INTERNALDATE)
> 5131 IDLE
>
> How should I interpret this? I see 1668 and 1667?
>
> Cheers,
>
> Jan
>
>
> -----Oorspronkelijk bericht-----
> Van: dovecot-bounces+jan.vandenberg=isp.solcon.nl at dovecot.org
> [mailto:dovecot-bounces+jan.vandenberg=isp.solcon.nl at dovecot.org] Namens
> Timo Sirainen
> Verzonden: woensdag 10 september 2008 20:45
> Aan: Jan van den Berg
> CC: 'Dovecot Mailing List'
> Onderwerp: Re: [Dovecot] Outlook 2003 and Thunderbird IMAP + gettingnew
> headers
>
> On Wed, 2008-09-10 at 10:29 +0200, Jan van den Berg wrote:
>> We run 1.1.3 and I use Outlook to connect to my IMAP box and a couple of
>> times per day (randomly) when I click certain folders IMAP will start
>> retrieving ALL headers for that folder again ('retrieving new headers')!
>
> Typically that means that the mailbox's UIDVALIDITY has changed. Or the
> messages get assigned new UIDs for some reason (e.g. Dovecot sees that
> they're gone, later sees them again). You could verify these by using
> e.g. rawlog (http://wiki.dovecot.org/Debugging/Rawlog) and seeing if the
> UIDVALIDITY value after SELECT command changes and if the returned UIDs
> get changed.
>
> Do you do anything on the server with dovecot-uidlist files? Or
> dovecot.index* files? Like deleting them once in a while as someone was
> doing in a cron job? :)
>
>
>