Does iRedMail has its own BIND DNS server to resolve nameservers?

==== Required information ====
- iRedMail version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Linux/BSD distribution name and version:
- Related log if you're reporting an issue:
====

Hello

Does iRedMail has itS own BIND DNS server to resolve nameservers?  I've sent up my domain so that iRedMail can resolve its own DNS.

If I'm wrong please tell me the correct procedure. If I use Godaddy's system and then create a ns1.and ns2 A records to point to my 2 IPs will that work?

Thank you!