ccom.edu.cn.		30 IN SOA win-ins3b6kn1it. admin.ccom.edu.cn. (
				2100000415 ; serial
				900        ; refresh (15 minutes)
				600        ; retry (10 minutes)
				86400      ; expire (1 day)
				3600       ; minimum (1 hour)
				)

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

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

Name servers:
ccom.edu.cn.		30 IN NS newdns2.ccom.edu.cn.
ccom.edu.cn.		30 IN NS newdns1.ccom.edu.cn.