product.co.jp.		30 IN SOA ns.kagoya.net. root.kagoya.net. (
				2024100014 ; serial
				4200       ; refresh (1 hour 10 minutes)
				300        ; retry (5 minutes)
				3600000    ; expire (5 weeks 6 days 16 hours)
				600        ; minimum (10 minutes)
				)

product.co.jp.		30 IN TXT "v=spf1 include:kagoya.net ~all"

Mail exchangers:
product.co.jp.		30 IN MX 10 dmail.kagoya.net.

Name servers:
product.co.jp.		30 IN NS ns0.kagoya.net.
product.co.jp.		30 IN NS ns1.kagoya.net.