We solved the problem by installing the whole Server for the BES again and carefully followed the install procedure from the realse notes.
now we use the zcb 5.0.18 with bes 4.1.6 mr5 and outlook 2007 sp2 on a windows 2003 server with the latest patches and updates.
everthing works fine with firstname.lastname@server as account name :-)
__________________ Code: <\***/>
Reinhard ( . . )
-------------------ooO--U--Ooo---- |