city.kamo.niigata.jp	IN	MX	sc15-mail01.sbt-isc.jp
city.kamo.niigata.jp	IN	NS	dnsz02.ginzado.ne.jp
city.kamo.niigata.jp	IN	NS	ns.city.kamo.niigata.jp
city.kamo.niigata.jp	IN	TXT	v=spf1 +ip4:157.70.253.52 +ip4:192.47.67.81 +ip4:103.173.104.19 +ip4:157.70.245.32/30 +ip4:110.92.1.31 +ip4:202.248.47.0/24 +ip6:2406:b800:0:1::31 ~all