ihuadu.cn.		30 IN SOA dns17.hichina.com. hostmaster.hichina.com. (
				2025031817 ; serial
				3600       ; refresh (1 hour)
				1200       ; retry (20 minutes)
				86400      ; expire (1 day)
				600        ; minimum (10 minutes)
				)

ihuadu.cn.		30 IN TXT "v=spf1 include:spf.mxhichina.com -all"

Mail exchangers:
ihuadu.cn.		30 IN MX 10 mxw.mxhichina.com.
ihuadu.cn.		30 IN MX 5 mxn.mxhichina.com.

Name servers:
ihuadu.cn.		30 IN NS dns18.hichina.com.
ihuadu.cn.		30 IN NS dns17.hichina.com.