clear.es.		30 IN SOA dns19.servidoresdns.net. hostmaster.servidoresdns.net. (
				2008030740 ; serial
				21600      ; refresh (6 hours)
				3600       ; retry (1 hour)
				2419200    ; expire (4 weeks)
				1800       ; minimum (30 minutes)
				)

clear.es.		30 IN TXT "v=spf1 include:spf.ipzmarketing.com
include:_spf.serviciodecorreo.es ~all"

clear.es.		30 IN A	51.254.5.1

Mail exchangers:
clear.es.		30 IN MX 10 mx.serviciodecorreo.es.

Name servers:
clear.es.		30 IN NS dns20.servidoresdns.net.
clear.es.		30 IN NS dns19.servidoresdns.net.