[sync] Windows Phone ActiveSync Issue - no Mailbody displayed

[Lukas Gradl]

Hi!

We've a problem with a Windows Phone 7.5 device (Nokia Lumia 800)  
connected to Horde (5.0.4) via ActiveSync (Protocol Version 12.1).  
Mails transferred via initial sync are displayed correctly, Mail  
arriving at a later time show headers only.

Unfortunatly I don't have access to the phone and we don't have  
another Windows phone to compare. Android and iOS are working as  
expected.

I've found http://bugs.horde.org/ticket/12203 so it seems that I'm not  
the only one with that problem.

Any hints what to do next?

regards
Lukas