byr.edu.cn.		30 IN SOA ns.byr.edu.cn. admin.example.com. (
				2100000081 ; serial
				10800      ; refresh (3 hours)
				900        ; retry (15 minutes)
				604800     ; expire (1 week)
				86400      ; minimum (1 day)
				)

byr.edu.cn.		30 IN TXT "v=spf1 a mx include:spf.forwardemail.net -all"
byr.edu.cn.		30 IN TXT "forward-email=frederic.dt.twh+byr.edu.cn@gmail.com"

Mail exchangers:
byr.edu.cn.		30 IN MX 10 mx2.forwardemail.net.
byr.edu.cn.		30 IN MX 10 mx1.forwardemail.net.

Name servers:
byr.edu.cn.		30 IN NS xsc.byr.edu.cn.
byr.edu.cn.		30 IN NS dns.byr.edu.cn.