My Provider offers funambol as communication software . Is ist possible to sync funambol calendar and contacts qwith eMClient too? WebDAV/ CalDAV does not seem to work.
Funambol is quite a big open source project with both free and commercial build. The intended target was the SyncML protocol (mobile), CalDAV protocol was not included. They maybe some build or some developer implement the CalDAV, you need to ask your provider. As eM works with CalDAV protocol, but not SyncML.