izu.co.jp.		30 IN SOA ns1.izu.jp. root.izu.jp. (
				2024020601 ; serial
				7200       ; refresh (2 hours)
				3600       ; retry (1 hour)
				1814400    ; expire (3 weeks)
				600        ; minimum (10 minutes)
				)

izu.co.jp.		30 IN TXT "v=spf1 include:spf01.izu.jp ~all"

Mail exchangers:
izu.co.jp.		30 IN MX 10 mx.izu.co.jp.

Name servers:
izu.co.jp.		30 IN NS ns2.izu.jp.
izu.co.jp.		30 IN NS ns1.izu.jp.