exo.kr.			30 IN SOA sns1.nsgodo.com. exo.kr.exo.kr. (
				2017080201 ; serial
				11000      ; refresh (3 hours 3 minutes 20 seconds)
				1800       ; retry (30 minutes)
				86400      ; expire (1 day)
				300        ; minimum (5 minutes)
				)

exo.kr.			30 IN TXT "v=spf1 mx include:spf.ecounterp.com ~all"

exo.kr.			30 IN A	133.186.153.231

Mail exchangers:
exo.kr.			30 IN MX 10 wmx.ecounterp.com.

Name servers:
exo.kr.			30 IN NS sns2.nsgodo.com.
exo.kr.			30 IN NS sns1.nsgodo.com.