imech.ac.cn.		30 IN SOA ns.imech.ac.cn. mail.imech.ac.cn. (
				209        ; serial
				28800      ; refresh (8 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				1800       ; minimum (30 minutes)
				)

imech.ac.cn.		30 IN TXT "lwcd15w1pc7ds4xm00vr2jf3d7c4qv0h"
imech.ac.cn.		30 IN TXT "0dh8z3wlpvggntn8xt5ywjv8b5cq2g26"
imech.ac.cn.		30 IN TXT "v=spf1 include:spf.mail.cstnet.cn -all"

Mail exchangers:
imech.ac.cn.		30 IN MX 1 mx.cstnet.cn.

Name servers:
imech.ac.cn.		30 IN NS ns4.cstnet.cn.
imech.ac.cn.		30 IN NS ns3.cstnet.cn.