> > For domain lookup You should use whois instead of host > > Nonsense. > > $ host css2.ndcorp.com > Host css2.ndcorp.com not found: 3(NXDOMAIN) > $ host -t mx css2.ndcorp.com > Host css2.ndcorp.com not found: 3(NXDOMAIN) > > WHOIS is use to look up the REGISTRATION details od a delegated domain. If domain does not exist there are no REGISTRATION detail. Are you agree?
> css2.ndcorp.com is not delegated, but ndcorp.com is: I think css2.ndcorp.com it's a host, not subdomain
