town.toyono.osaka.jp	IN	MX	cluster1a.us.messagelabs.com
town.toyono.osaka.jp	IN	MX	cluster1.us.messagelabs.com
town.toyono.osaka.jp	IN	NS	ns1.utility.k-opti.com
town.toyono.osaka.jp	IN	NS	ns2.utility.k-opti.com