[cobalt-users] Stopping email to a customers domain name

["Render-Vue" <sales@xxxxxxxxxxxxxx>]

Hi Yah,

I have a customer on the server who has just picked up an expired .com
domain name pertaining to his business. He currently has the .co.nz account
set-up on the server and I have added the .com to the GUI DNS (minus an MX
record) and updated the httpd.conf with the appropriate ServerAlias details
and everything works hunky dory...
Problem is that with the domain name he purchased there is still a mass of
email being addressed to it most of it xxx and spam related...the customer
doesn't want email use for this domain name only the .co.nz version.

Now my question is how do I reject mail addressed to the .com address -
basically so it doesn't even hit the server - I know it all gets bounced
back but you haven't seen my logs since the domain name was added to the
server :<

I know how to reject mail from domains, addresses etcetera outside the
server but not sure how to approach mail addressed to a domain on the server

Many thanks in advance

Chae