[Dovecot] Mailbox consistency with multiple clients

[Yates Ian Mr (ITCS)]

I'm confused by this as well.

Additionally with 1.1.3 we were getting lots of reports of people
deleting/moving items from their inbox and the items remaining in the
inbox?!  Also read items not being marked as read.  Both of these are
from squirrelmail, which as you say should be impossible as squirrelmail
logs in, performs the operation and logs out.

We aren't using any kind of IMAP proxy.

We are using the dovecot index files.

As I said before, this was not a problem when we were using dovecot
1.0.8.  In an effort to resolve this I will be downgrading to 1.0.8 this
morning, I'll let you know if this sorts out the problems!

I.

>-----Original Message-----
>From: dovecot-bounces+i.yates=uea.ac.uk at dovecot.org 
>[mailto:dovecot-bounces+i.yates=uea.ac.uk at dovecot.org] On 
>Behalf Of Timo Sirainen
>Sent: Monday, September 22, 2008 9:02 PM
>To: Dovecot Mailing List
>Subject: Re: [Dovecot] Mailbox consistency with multiple clients
>
>On Thu, 2008-09-18 at 12:06 +0100, Yates Ian Mr (ITCS) wrote:
>> There's a mix of the following:
>> 	Outlook
>> 	Outlook express
>> 	Thunderbird
>> 	Squirrelmail (webmail)
>> 
>> But we tried getting the users sharing the account to use just one 
>> client (squirrelmail) and they were still reporting the problem?!
>> 
>> I forgot to say that they were working this way with no problems on 
>> dovecot 1.0.2 but since the migration to 1.1.3 we've had 
>this problem.
>> 
>> In an effort to help the situation I changed the following settings 
>> from the original, from enabling lazy writes to disabling:
>> mbox_dirty_syncs: no
>> mbox_lazy_writes: no
>
>As long as you're using Dovecot's index files, these should 
>make no difference. Do they?
>
>I find this problem really weird. If you're using a shared 
>account, it's exactly the same as if there were just a single 
>user using multiple clients. Or in Squirrelmail case the same 
>as if the same user was logged in multiple times with 
>different web browsers. And in Squirrelmail case it connects, 
>does something for a short time and disconnects. Dovecot 
>doesn't even know if there are different users using it. So if 
>it shows different views for different users, then the exact 
>same thing should be happening also randomly to the same user 
>even if s/he's the only one logged in.
>
>Are you using any kind of an IMAP proxy?
>