sindbadtech.com.	30 IN SOA dns.4cun.com. admin.sindbadtech.com. (
				1576427853 ; serial
				3600       ; refresh (1 hour)
				180        ; retry (3 minutes)
				1209600    ; expire (2 weeks)
				600        ; minimum (10 minutes)
				)

sindbadtech.com.	30 IN A	115.28.2.230

Mail exchangers:
sindbadtech.com.	30 IN MX 10 mx.mail.ym.163.com.