markers.kr.		30 IN SOA ns.mailplug.com. root.mailplug.com. (
				2023011500 ; serial
				21600      ; refresh (6 hours)
				1800       ; retry (30 minutes)
				1209600    ; expire (2 weeks)
				7200       ; minimum (2 hours)
				)

markers.kr.		30 IN A	211.43.12.102

Name servers:
markers.kr.		30 IN NS ns2.mailplug.com.
markers.kr.		30 IN NS ns.mailplug.com.