duyen.vn.		30 IN SOA ns1.zonedns.vn. root.duyen.vn. (
				2023122306 ; serial
				1200       ; refresh (20 minutes)
				600        ; retry (10 minutes)
				1209600    ; expire (2 weeks)
				3600       ; minimum (1 hour)
				)

duyen.vn.		30 IN TXT
"google-site-verification=eDSODvi0Wy4CGnGyonIS6vNkSulfJ5vn8kMuhna8png"
duyen.vn.		30 IN TXT "v=spf1 mx ip4:123.30.50.30 include:spf.nhanhoa.com -all"

duyen.vn.		30 IN A	123.30.50.30

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

Name servers:
duyen.vn.		30 IN NS ns2.zonedns.vn.
duyen.vn.		30 IN NS ns1.zonedns.vn.
duyen.vn.		30 IN NS ns3.zonedns.vn.