DNS ERROR resolving

[barnicoate]

New to Zimbra, have been trying to set up a mail server for SOHO,

Clean install of Ubuntu 8.04, fresh download of ZIMBRA (Ver 6.0.0) for Ubuntu,
Pentium 4, 32bit, 1gb ram, 250gb SATA HD,..

2 Desktops, 1 Laptop, (Win XP/Vista) (Outlook 2007)

Behind a ADSL modem router..

I keep getting the DNS Error for resolving Host Name...

I have read both the quick start and full manuals.. But ???,

What exactly is ZImbra asking for and how do I resolve it...

Is there a simple sticky or basic set of instructions so I can follow the bouncing ball..

Thanks for any help

[mtorres]

Hi, not sure if I can help but if you posted the result of the below it might help.
cat /etc/hosts
cat /etc/resolv.conf
dig yourdomain mx
dig yourdomain any
host `hostname` <- note backticks and not single quotes

[Bill Brock]

There is a wiki, you can search for it, that will tell you how to setup Split DNS since you are behind a firewall.

[uxbod]

Zimbra Wiki :: Split DNS