bigship.vn.		30 IN SOA ns1.dotvndns.vn. hostmaster.bigship.vn. (
				2025021902 ; serial
				14400      ; refresh (4 hours)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				86400      ; minimum (1 day)
				)

bigship.vn.		30 IN TXT "v=spf1 a mx ~all"

bigship.vn.		30 IN A	103.77.162.36

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

Name servers:
bigship.vn.		30 IN NS ns1.dotvndns.vn.
bigship.vn.		30 IN NS ns2.dotvndns.vn.