ecust.edu.cn.		30 IN SOA dns1.ecust.edu.cn. mail.ecust.edu.cn. (
				1642       ; serial
				28800      ; refresh (8 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				1800       ; minimum (30 minutes)
				)

ecust.edu.cn.		30 IN TXT "v=spf1 include:spf.163.com -all"

ecust.edu.cn.		30 IN A	202.120.108.164
ecust.edu.cn.		30 IN AAAA ::1

Mail exchangers:
ecust.edu.cn.		30 IN MX 10 mxhm.qiye.163.com.

Name servers:
ecust.edu.cn.		30 IN NS dns1.ecust.edu.cn.
ecust.edu.cn.		30 IN NS dns2.ecust.edu.cn.