dongbucni.co.kr.	30 IN SOA ns1.dbgroup.co.kr. cnidns.dbgroup.co.kr. (
				2016071842 ; serial
				21600      ; refresh (6 hours)
				1800       ; retry (30 minutes)
				86400      ; expire (1 day)
				3600       ; minimum (1 hour)
				)

dongbucni.co.kr.	30 IN TXT "v=spf1 include:spf.protection.outlook.com -all"

Mail exchangers:
dongbucni.co.kr.	30 IN MX 10 aspmx1.naver.com.
dongbucni.co.kr.	30 IN MX 20 aspmx2.naver.com.
dongbucni.co.kr.	30 IN MX 0 dongbucni-co-kr.mail.protection.outlook.com.

Name servers:
dongbucni.co.kr.	30 IN NS ns2.dbgroup.co.kr.
dongbucni.co.kr.	30 IN NS ns1.dbgroup.co.kr.