Zimbra is unable to configure my domain. Every time a start the zmsetup.pl script I receive this error.

Checking java version...1.5 found
Operations logged to /tmp/zmsetup.log.3624
Setting defaults...No results returned for A lookup of TerrorDome.local
Checked nameservers:
68.87.85.98
68.87.69.146


DNS ERROR resolving TerrorDome.local
It is suggested that the hostname be resolveable via DNS
Change hostname [Yes] mail.purplestuff.com
A Yes/No answer is required
Change hostname [Yes] y
Please enter the logical hostname for this host [TerrorDome.local] mail.purplestuff.com
No results returned for MX lookup of mail.purplestuff.com
Checked nameservers:
68.87.85.98
68.87.69.146


DNS ERROR resolving MX for mail.purplestuff.com
It is suggested that the domain name have an MX record configured in DNS
Change domain name? [Yes]

I looked at my /etc/hosts file, but I had no clue what to do with it.

Any hint?

Thanks