[horde] Active Sync Problem on IPAD

[Helmut Schiefer]

Dear List,

I upgrade to horde 5.2.1, stable release and IOS 7.2.1 on IPAD and IPhone.

On both devices all contacts are gone, calendar entries and mail works  
fine. I checked the IPad configuration and the active sync contact  
entry is selected.

I want to sync via Active Sync. Sync Debug Log shows now Errors and  
also horde log shows now error.

On a Win8.1 mobile phone, all works well.

Any Idea where I can search?
I'm able to provide the device log, but I think it's to much data to  
upload here.

Running Ubuntu 14.04.01 with Cyrus 2.4.17.

Thanks for help
Helmut