Hi, me again ...

In an older thread I found this regarding external DNS servers (not running it on the Zimbra server)

You do not necessarily have to run BIND on your Zimbra server to get it working, but you do have to have DNS working properly.
Now, is this still (Zimbra 8.x) valid, and where do I point Zimbra to an external DNS server? Someone point to the relevant doc (if available).