usinasite.com.		30 IN SOA ns1.w3x.com.br. root.server.w3x.com.br. (
				2026010801 ; serial
				3600       ; refresh (1 hour)
				1800       ; retry (30 minutes)
				1209600    ; expire (2 weeks)
				86400      ; minimum (1 day)
				)

usinasite.com.		30 IN TXT "v=spf1 ip4:138.128.179.10 include:relay.mailbaby.net +a
+mx ~all"

usinasite.com.		30 IN A	138.128.179.10

Mail exchangers:
usinasite.com.		30 IN MX 0 usinasite.com.

Name servers:
usinasite.com.		30 IN NS ns1.w3x.com.br.
usinasite.com.		30 IN NS ns2.w3x.com.br.