setech.co.kr.		30 IN SOA setech.co.kr. postmaster.setech.co.kr. (
				20161209   ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				3600000    ; expire (5 weeks 6 days 16 hours)
				43200      ; minimum (12 hours)
				)

setech.co.kr.		30 IN TXT "v=spf1 ip4:211.119.134.204 include:_spf.hiworks.co.kr
~all"

setech.co.kr.		30 IN A	183.111.183.126

Mail exchangers:
setech.co.kr.		30 IN MX 20 mailapp.hiworks.co.kr.

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