I have the zimbra appliance running on ESXi 4.0.  I have set the DNS in Webmin with fourt name servers.  First the two for my godaddy domain hosting account and two for my access account with Road Runner.  I cannot see them from the appliance CLI with DiG, nameserver, host, etc., however I can see them from web based DNS look-up websites.  I have the appliance firewall open and the appropriate ports in my netgear FVS318 firewall/router from the DMZ where the server is.  Where else do I turn to insure the propoert DNS records are available?

Another problem, which may not be related, is that I can only access webmin from port 1000.  When set to 12321 it times out.