This is a project that tries to make users' contacts in Zarafa-groupware accessible via a CardDav-interface. A fully functional CardDav-interface would allow for a full integration of MacOS- and Linux-Clients with the Zarafa Groupware Server.
More detailed instructions can be found on the Zarafa-wiki and the Zarafa Community Hub. There is also a thread at the Zarafa forum about this CardDav-interface.
The original script was written by Rainer Voigt, Amin Baumeler