SOA
Start of Authority
Primary NS
Mailbox
tech.sakura.ad.jp
Serial
2021120705
Refresh
3600
Retry
900
Expire
3600000
Minimum TTL
3600
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 include:spf.mandrillapp.com include:sendgrid.net include:spf.protection.outlook.com a:www2025.sakura.ne.jp mx ~all
MS=ms91030029