virual host and MX record

Hi

I have four virtual hosts on my lynix machine. this machine is also DNS server.
and mail server. All four work with same mail server. I want to change one of them so the mail server be some other remote machine [exchange]

How should I set up MX record.

 NS      ns.mainhost.com.
 NS      ns2.mainhost.com.
 MX    10      servername.mainhost.com.

mainhost.com.        A       123.129.197.789

www             CNAME   mainhost.com.
ftp             CNAME   mainhost.com.
mail            CNAME   mainhost.com.
servername        A       123.129.197.456
*               A       123.129.197.789


############
and the host2's zone file that I want to change is like this

 NS      ns.mainhost.com.
 NS      ns2.mainhost.com.

*               A       123.129.203.123
host2.com.        A       123.129.203.123
www             CNAME   host2.com.
ftp             CNAME   host2.com.
mail            CNAME   host2.com.


so how I can change host2's zone file so its website be same on 123.129.203.123 and its user@host2.com email and mail server be somewhere else, like point to 66.23.23.14

Thanks
Nav
Nav444Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

jlevieCommented:
Simple. In the zone file for host2.com include an MX record pointing to the mail server you want to be authoritative for that domain.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
DevZer0Commented:

host2.com.   MX      66.23.23.14


It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Linux

From novice to tech pro — start learning today.