setup DNS server with correct MX records (suse10.3)

Greetings,
im trying to install a zimbra mail server on suse 10.3
but first i have to install a DNS server with a valid
MX A records, after some researches on internet i found only conflicting posts and tutorials.

i tried to configure it using this tutorial
Making Zimbra & BIND Work Together » Zimbra :: Blog
(using centOS) .does this help ?
coz the problem is that i must install a “caching-nameservers” package (available for redhat) but i didnt find something like it for suse
plzzzzzzz could anyone help me with this
thks!!