[horde] CardDAV with eM Client

[lst_hoe02 at kwsoft.de]

Hello,

for other reasons we are testing eM Client (www.emclient.com) and  
noticed that it claims CardDAV support. We tried it with latest  
Horde/Turba and while inserting contacts work fine, non of the  
contacts is shown at the client. A matching thread from other users in  
their forum is here  
http://forum.emclient.com/emclient/topics/carddav_server_contacts_not_showing_in_em_but_when_we_create_contact_on_em_it_is_getting_synced_on_carddav

It would be really nice to get this fixed so i wonder how to debug  
Horde/CardDAV most efficiently? Should i take a tcpdump or is there a  
smart way to get a useful debug log?

Thanks

Andreas