portalsustentavel.com.br. 30 IN	SOA a.auto.dns.br. hostmaster.registro.br. (
				2024128240 ; serial
				1800       ; refresh (30 minutes)
				900        ; retry (15 minutes)
				604800     ; expire (1 week)
				900        ; minimum (15 minutes)
				)

portalsustentavel.com.br. 30 IN	TXT "v=spf1 -all"

Mail exchangers:
portalsustentavel.com.br. 30 IN	MX 0 .

Name servers:
portalsustentavel.com.br. 30 IN	NS a.auto.dns.br.
portalsustentavel.com.br. 30 IN	NS b.auto.dns.br.