wsamc.co.kr.		30 IN SOA wsamc.co.kr. postmaster.wsamc.co.kr. (
				20181101   ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				3600000    ; expire (5 weeks 6 days 16 hours)
				43200      ; minimum (12 hours)
				)

wsamc.co.kr.		30 IN TXT "v=spf1 ip4:211.34.104.37 ~all"

wsamc.co.kr.		30 IN A	220.73.161.15

Mail exchangers:
wsamc.co.kr.		30 IN MX 10 rmw-002.fmcity.com.

Name servers:
wsamc.co.kr.		30 IN NS ns.wsamc.co.kr.
wsamc.co.kr.		30 IN NS ns3.wsamc.co.kr.
wsamc.co.kr.		30 IN NS ns2.wsamc.co.kr.
wsamc.co.kr.		30 IN NS ns1.wsamc.co.kr.