y5zone.net.		30 IN SOA ns1.y5zone.net. noc.y5zone.net. (
				2017101606 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				600        ; minimum (10 minutes)
				)

y5zone.net.		30 IN TXT "v=bm31511568ik3hl12i0iaaueml"
y5zone.net.		30 IN TXT "v=spf1 mx mx:mailserver.y5zone.net ip4:165.84.169.122
-all"

y5zone.net.		30 IN A	42.99.131.21

Mail exchangers:
y5zone.net.		30 IN MX 5 mail.bbmail.com.hk.

Name servers:
y5zone.net.		30 IN NS ns1.hkbn.net.
y5zone.net.		30 IN NS ns2.hkbn.net.