after working without problems for month, a delegate server used for
mounting several newsserver together, stoped working.
The delegate server had problems with dns resolutions.
The problem could be tracked down to a change in the machine that was used
as a namserver, it changed from a unix based machine to a NT server.
The weird thing is, if the NT namserver is used from delegate itself
instead using the host system for dns resolution, everything works fine.
As i found a workaround this isn't a real problem, just strange.
The config is:
delegate Version is 5.9.3