dmdaac.com.		30 IN SOA ns1.yiyu.com. dnsadmin.yiyu.com. (
				1751342647 ; serial
				3600       ; refresh (1 hour)
				300        ; retry (5 minutes)
				1209600    ; expire (2 weeks)
				1800       ; minimum (30 minutes)
				)

dmdaac.com.		30 IN TXT "v=spf1 include:spf.mail.qq.com ~all"

dmdaac.com.		30 IN A	103.24.248.147

Mail exchangers:
dmdaac.com.		30 IN MX 5 mxbiz1.qq.com.
dmdaac.com.		30 IN MX 10 mxbiz2.qq.com.

Name servers:
dmdaac.com.		30 IN NS ns1.yiyu.com.
dmdaac.com.		30 IN NS ns2.yiyu.com.