smsteel.cn.		30 IN SOA a.ezdnscenter.com. dnsadmin.ezdnscenter.com. (
				1754040326 ; serial
				3600       ; refresh (1 hour)
				300        ; retry (5 minutes)
				1209600    ; expire (2 weeks)
				1800       ; minimum (30 minutes)
				)

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

smsteel.cn.		30 IN A	114.80.153.37

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

Name servers:
smsteel.cn.		30 IN NS a.ezdnscenter.com.
smsteel.cn.		30 IN NS b.ezdnscenter.com.