Will the new DNS zone for the mail server ruin the CD?

Question

Domain Name System

There is a mail server with the address "mail" in the domain zone "company.loc" on the Windows Server 2008R2 CD.
In order for users to knock on "mail.company.ru" you need to create a new domain zone.
The question is, will the new "company.ru" zone spoil the work of CD in the "company.loc" zone?

Answer 1

No, it won't spoil.