cort.as.		30 IN SOA dns1.p09.nsone.net. hostmaster.nsone.net. (
				1730219733 ; serial
				43200      ; refresh (12 hours)
				7200       ; retry (2 hours)
				1209600    ; expire (2 weeks)
				3600       ; minimum (1 hour)
				)

cort.as.		30 IN TXT "v=spf1 mx -all"

cort.as.		13 IN A	52.50.253.123
cort.as.		13 IN A	54.247.184.90

Mail exchangers:
cort.as.		30 IN MX 10 mail01.edicioneselpais.net.
cort.as.		30 IN MX 20 mail02.edicioneselpais.net.

Name servers:
cort.as.		30 IN NS dns1.p06.nsone.net.
cort.as.		30 IN NS dns2.p06.nsone.net.
cort.as.		30 IN NS dns3.p06.nsone.net.
cort.as.		30 IN NS dns4.p06.nsone.net.