naru.biz.		30 IN SOA master.dns.ne.jp. tech.sakura.ad.jp. (
				2024020301 ; serial
				3600       ; refresh (1 hour)
				900        ; retry (15 minutes)
				3600000    ; expire (5 weeks 6 days 16 hours)
				3600       ; minimum (1 hour)
				)

naru.biz.		30 IN TXT "v=spf1 ip4:140.238.42.85 ~all"
naru.biz.		30 IN TXT "v=spf1 mx a:mail.tyo.cloud.naru.biz ~all"

naru.biz.		30 IN A	27.96.44.154

Mail exchangers:
naru.biz.		30 IN MX 10 mail.tyo.cloud.naru.biz.

Name servers:
naru.biz.		30 IN NS ns1.dns.ne.jp.
naru.biz.		30 IN NS ns2.dns.ne.jp.