Bind not answering to extern?

[susikaufmann2003 at hotmail.com]

Hello,

I have got a bind-dns, but I cannot receive its managed domains from
outside.

nslookup from server-console:

Server:         xx.xx.xx.xx
Address:        xx.xx.xx.xx#53

Name:   mydomain.de
Address: xx.xx.xx.xx

nslookup from another client:

Server:         UnKnown
Address:        169.168.0.1

*** mydomain.de cannot be found by UnKnown: Server failed


Greetings and thank you in advance for any help,

Susanne