[horde] Horde Activesync with Outlook 2013/2016: duplicate folders on folder creation

[Michael J Rubinsky]

Quoting Hendrik Noack <hn at axxedia-it.de>:

> -----Ursprüngliche Nachricht-----
> Quoting Hendrik Noack <hn at axxedia-it.de>:
>
>> Hello everbody,
>>
>>
>>
>> I did not find anything on the internet on that topic, so I hope maybe
>> someone has seen this behaviour before.
>>
>>
>>
>> We are using Debian 8 with Dovecot, Exim and Horde on top. The Horde
>> installation is up to date. Our clients are using Outlook 2013/2016 to
>> connect via Horde activesync.
>>
>> We also have a bunch of iOS and Android devices.
>>
>>
>>
>> It’s not always happening, but too often to be just a rare bug. When an
>> Outlook client creates a new mail folder, the folder is created, then a
> sync
>> against horde is started and the very same folder is immediately sync‘ed
>> back as another new folder. The client now has: folder and folder [1] in
> the
>> database. Right after the appearances of the duplicate folder a new sync
> is
>> started that clears out all mails, contacts and appointments from that
>> client, so that Outlook appears to be empty. A reset in activesync for
> that
>> client on the server side does not clear this problem, I have to delete
> the
>> local .ost cache for that client. The next sync will then bring back all
>> mails, contacts and appointment. The duplicate folder is also gone, as it
>> was never duplicated on the server side.
>>
>>
>>
>> Creating a folder in IMP always works as it should, I have never seen
>> duplicates in Outlook when I created the folder in IMP.
>>
>>
>>
>> My guess is, that there must be something going terribly wrong sometimes
>> when Outlook tries to create a new folder via activesync. Or maybe this a
>> problem with my Dovecot configuraiton, but like I said, the duplicates
> never
>> reach the server.
>
> Please provide a sync log for further assistance.
>
>
>
>> Any ideas would be much appreciated.
>>
>>
>>
>>
>>
>> Mit freundlichen Grüßen / Best regards
>>
>> Hendrik Noack
>>
>>
>>
>> --
>> Axxedia IT GmbH
>>
>> Schwabstr. 30
>> 71106 Magstadt
>>
>> Tel +49 7159 4979763
>> Fax +49 7159 4979775
>>
>> Mail hn at axxedia-it.de <mailto:hn at axxedia-it.de>
>>
>> Sitz der Gesellschaft: Schwabstr. 30, 71106 Magstadt
>> Geschäftsführer: Hendrik Noack . Amtsgericht: Stuttgart HRB 727296
>
>
>
> --
> mike
> The Horde Project
> http://www.horde.org
> https://www.facebook.com/hordeproject
> https://www.twitter.com/hordeproject
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>
> Hi Mike,
>
> your help is always appreciated. Murphy's law is a bi***, I had to bother a
> few people until it was my private Outlook  that did me a favor and created
> a duplicate folder (got a small horde install with dovecot and exim in my
> basement too, just for fun).
>
> The log file is pretty big, so I decided to put it into my owncloud.
> https://www.schwabstrasse.me/owncloud/s/Uk5Dn7x0YWuftT4

File Not Found.


> I created a subfolder Test in Belege. Search for "Belege.Test"
>
> Btw my private Outlook client is not using Active Directory authentication
> via pam, but pam is used for local authentication, and I still don't think
> it's related to authentication, but who knows...
>
>
>
> Mit freundlichen Grüßen / Best regards
>    
> Hendrik Noack
>
>    
> --
> Axxedia IT GmbH
>
> Schwabstr. 30
> 71106 Magstadt
>    
> Tel +49 7159 4979763
> Fax +49 7159 4979775
>    
> Mail hn at axxedia-it.de
>    
> Sitz der Gesellschaft: Schwabstr. 30, 71106 Magstadt
> Geschäftsführer: Hendrik Noack . Amtsgericht: Stuttgart HRB 727296



-- 
mike
The Horde Project
http://www.horde.org
https://www.facebook.com/hordeproject
https://www.twitter.com/hordeproject
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