i will install a NS 7 Final as Mailserver. I have a static IP and some registered Domains.
Can i give the NS 7 the FQDN like the subdomain?
For example Domain is heavy-water.com
Subdomain is mail.heavy-water.com
MX of Domain points to Subdomain
Subdomain points to the static IP
What is the right FQDN for the NS 7?