[Dovecot] outlook2007 shows frequent imap disconnect no matter what outlook-idle setting in dovecot.conf

[M. Bobkiewicz]

Hi Sam,

Samuel HAMEAU schrieb:
> Scott Silva a écrit :
>> on 3-26-2008 1:33 AM Kielbasiewicz, Peter spake the following:
>>> Hello,
>>> I saw the problem quite often in various posts but could not find a 
>>> real solution .
>>> Problem is that I frequently get annoying popups from outlook 2007 
>>> about imap idle timeouts which block working with outlook until the 
>>> popup is acknowledged.
>>>
>>> The popup says:
>>>  Your IMAP server closed the connection. This can occur if you leave 
>>> the connection idle for too long.
>>>  Protocol: IMAP
>>>  Server:     testhost
>>>  Port:         143
>>>  Error Code: 0x800CCCDD
>>>
>>> I tried to run dovecot with or without  "imap_client_workarounds = 
>>> outlook-idle" but do not see any difference.
>>> I am running dovecot on Red Hat Enterprise Linux Client release 5.1 
>>> (Tikanga).
>>> Below is the output of some commands to get a clue about my config.
>>>
>>> Background info:
>>> Our primary mailboxes are on exchange servers.
>>> As there is a size limit on the server mailboxes I am evaluating a 
>>> local storage solution for our users.
>>> Thus  I set up an additional mailbox in outlook using IMAP.
>>> Local .pst files can not be backuped easily (especially when outlook 
>>> is running) and I am investigating a local IMAP server where users 
>>> can move their mails to. This server can easily be backuped (even 
>>> incrementally when using Maildir) and users do  always have access to 
>>> their mails.
>>> The drawbacks are that users must have an extra login to the imap 
>>> server because I have no ldap access to the company AD server from 
>>> our local site domain.
>>> The solution will not be accepted though if I can not prevent the 
>>> frequent disconnect popups.
>>>
>>> Peter
>>>
>>>
>>> #dovecot --version
>>> 1.0.rc15
>> First try upgrading to a more current version. 1.0.rc15 has got to be 
>> a year old by now. You can get a newer rpm at atrpms.net.
>>
> 
> I do have the same problem with dovecot 1.0.10 : disconnection popups 
> with Outlook 2003/2007 with this kind of line in the logs:
> dovecot: 2008-03-26 15:16:01 Info: IMAP(user): Connection closed: 
> Connection reset by peer
> 
> sam

in my experience it´s a general Outlook problem, no matter which 
version. I´ve seen this with uw and courier imap. I think it is related 
to the way how MS handles idle timeouts...

Greetings,

  Mike