exi.co.kr.		30 IN SOA exi.co.kr. postmaster.exi.co.kr. (
				20180529   ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				3600000    ; expire (5 weeks 6 days 16 hours)
				43200      ; minimum (12 hours)
				)

exi.co.kr.		30 IN TXT "v=spf1 ip4:222.122.39.84 ~all"

exi.co.kr.		30 IN A	222.122.39.84

Mail exchangers:
exi.co.kr.		30 IN MX 10 exi.co.kr.

Name servers:
exi.co.kr.		30 IN NS ns3.cafe24dns.co.kr.
exi.co.kr.		30 IN NS ns1.cafe24dns.co.kr.