SOA
Start of Authority
Primary NS
Mailbox
tech.sakura.ad.jp
Serial
2025111601
Refresh
3600
Retry
900
Expire
3600000
Minimum TTL
3600
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 a:www2050.sakura.ne.jp mx include:_spf.google.com include:spf.bmsend.com ~all
A