gtc-biz.com.		30 IN SOA ns1.whoisdomain.kr. help.whois.co.kr. (
				2024103101 ; serial
				10800      ; refresh (3 hours)
				3600       ; retry (1 hour)
				604800     ; expire (1 week)
				3600       ; minimum (1 hour)
				)

gtc-biz.com.		30 IN TXT "v=spf1 redirect=_spf.mailnara.co.kr"

Mail exchangers:
gtc-biz.com.		30 IN MX 10 mail.gtc-biz.com.

Name servers:
gtc-biz.com.		30 IN NS ns2.whoisdomain.kr.
gtc-biz.com.		30 IN NS ns1.whoisdomain.kr.
gtc-biz.com.		30 IN NS ns4.whoisdomain.kr.
gtc-biz.com.		30 IN NS ns3.whoisdomain.kr.