thangmaydongtam.vn.	30 IN SOA ns1.dns.net.vn. webmaster.dns.net.vn. (
				1639759803 ; serial
				7200       ; refresh (2 hours)
				1800       ; retry (30 minutes)
				1209600    ; expire (2 weeks)
				3600       ; minimum (1 hour)
				)

thangmaydongtam.vn.	30 IN TXT "v=spf1 a mx ?all"

thangmaydongtam.vn.	30 IN A	103.1.238.54

Mail exchangers:
thangmaydongtam.vn.	30 IN MX 10 mail.thangmaydongtam.vn.

Name servers:
thangmaydongtam.vn.	30 IN NS ns1.dns.net.vn.
thangmaydongtam.vn.	30 IN NS ns2.dns.net.vn.