njnu.edu.cn.		30 IN SOA pine.njnu.edu.cn. master.njnu.edu.cn. (
				1803142795 ; serial
				1800       ; refresh (30 minutes)
				600        ; retry (10 minutes)
				360000000  ; expire (595 weeks 1 day 16 hours)
				300        ; minimum (5 minutes)
				)

njnu.edu.cn.		30 IN TXT "7d64d3z3lzcxy9ldg9zcwzqkp9d2prp9"
njnu.edu.cn.		30 IN TXT "v=spf1 include:spf.mail.qq.com -all"

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

Name servers:
njnu.edu.cn.		30 IN NS pine.njnu.edu.cn.
njnu.edu.cn.		30 IN NS bamboo.njnu.edu.cn.