szcw.cn.		30 IN SOA ns11.xincache.com. ns12.xincache.com. (
				1730597219 ; serial
				3600       ; refresh (1 hour)
				180        ; retry (3 minutes)
				1209600    ; expire (2 weeks)
				180        ; minimum (3 minutes)
				)

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

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

Name servers:
szcw.cn.		30 IN NS ns15.xincache.com.
szcw.cn.		30 IN NS ns16.xincache.com.