SOA
Start of Authority
Primary NS
Mailbox
root.sv0.xserver.jp
Serial
0
Refresh
10800
Retry
3600
Expire
604800
Minimum TTL
3600
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 +mx include:myasp.jp ~all
v=spf1 ip4:203.183.142.128/25 ip4:202.230.45.0/25 ~all
A