vaz.tokyo.		30 IN SOA master.dns.ne.jp. tech.sakura.ad.jp. (
				2021113016 ; serial
				3600       ; refresh (1 hour)
				900        ; retry (15 minutes)
				3600000    ; expire (5 weeks 6 days 16 hours)
				3600       ; minimum (1 hour)
				)

vaz.tokyo.		30 IN TXT "v=spf1 a:www210.sakura.ne.jp mx ~all"

vaz.tokyo.		30 IN A	202.181.97.20

Mail exchangers:
vaz.tokyo.		30 IN MX 10 vaz.tokyo.

Name servers:
vaz.tokyo.		30 IN NS ns1.dns.ne.jp.
vaz.tokyo.		30 IN NS ns2.dns.ne.jp.