get stuck on mx check)

[get2guy]

hello all please help

info:
*ubuntu 6.06
*zimbra 6.0.5
*server name "mail" (is behind a firewall)
*domain name get2guy.com
*internal ip 192.168.2.110
*external ip 84.109.37.138
*my DNS 80.244.161.84
*firewall configured to port forward for 20-25 .143 .443
*i can connect by telnet to my server on the address mail.get2guy.com
*when i do nslookup to get2guy.com or mail.get2guy.com i get
Server: ns1.sitesdepot.com
Address: 80.244.161.84

Name: get2guy.com
Address: 84.109.37.138

just in the middle of installing zimbra i cant continue because of this error wich come again and again

#DNS ERROR resolving MX for mail.get2guy.com
#it is suggested that the domain name have an MX record configured in DNS
#change domain name? [YES]
#create domain: [mail.get2guy.com] get2guy.com
*i put get2guy.com , pressed enter and then i get
#
# MX: mail.get2guy.com (84.109.37.138)
#
# Interface: 192.168.2.110
# Interface 127.0.0.1
#
#DNS ERROR resolving MX for mail.get2guy.com
#it is suggested that the domain name have an MX record configured in DNS
#change domain name? [YES]
#create domain: [mail.get2guy.com]


*what can i do to resolve this problem?
*what am i doing wrong?

[phoenix]

*what can i do to resolve this problem?
*what am i doing wrong?

The answer to this problem is all over these forums. You need to set-up a Split DNS and a valid hosts file as noted in the Quick Start Installation Guide. As you're on Ubuntu you might like to search the wiki (link at the top of the page) for the word 'ubuntu' for a specific how-to.