22.cn.			30 IN SOA dns1.everdns.com. dnsadmin.everdns.com. (
				1712735036 ; serial
				7200       ; refresh (2 hours)
				3600       ; retry (1 hour)
				1209600    ; expire (2 weeks)
				1800       ; minimum (30 minutes)
				)

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

22.cn.			30 IN A	43.240.73.100

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

Name servers:
22.cn.			30 IN NS dns1.everdns.com.
22.cn.			30 IN NS dns2.everdns.com.