We pick l.root-servers.net, one of the 13 root servers (1), and ask it about googel.es and learn that es is delegated to seven name servers (2), so we ask a.nic.es where we learn that googel.es is delegated to two name servers, including ns63.1and1.es (3), so we ask that one and get the following answer:
The two mail servers mx00 and mx01.1and1.es together
There are several thousand of domains that use mail server group 1.
Most of those use name server group 1 (example: atlanticospahotel.com, culturamas.es and flirteos.es ). Worth noting is that most of the domains that use name server group 1 use mail server group 1.
Two percent of them point only to the IP number 87.106.192.251.
One percent of them point only to the IP number 217.160.225.154.
The two name servers ns63 and ns64.1and1.es together
There are several thousand of domains that use name server group 1.
Most of those use mail server group 1 (example: unasmalaga.com, wuick.net and auto-gestoria.net ). Worth noting is that most of the domains that use mail server group 1 use name server group 1.
Two percent of them point only to the IP number 87.106.195.113.
