SOA
Start of Authority
Primary NS
Mailbox
cloud-dns-hostmaster.google.com
Serial
5
Refresh
21600
Retry
3600
Expire
259200
Minimum TTL
300
MX
Mail Exchangers
TXT
TXT Records
v=spf1 +a:sv16308.xserver.jp include:spf.sender.xserver.jp include:_spf.google.com ~all
A