davide.is.		30 IN SOA a.x.is. hostmaster.x.is. (
				2015092801 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				1800       ; minimum (30 minutes)
				)

davide.is.		30 IN A	178.248.17.7

Mail exchangers:
davide.is.		30 IN MX 10 mx1.x.is.
davide.is.		30 IN MX 20 mx2.x.is.

Name servers:
davide.is.		30 IN NS c.x.is.
davide.is.		30 IN NS a.x.is.
davide.is.		30 IN NS b.x.is.
davide.is.		30 IN NS d.x.is.