SOA
Start of Authority
Primary NS
Mailbox
cloud-dns-hostmaster.google.com
Serial
1
Refresh
21600
Retry
3600
Expire
259200
Minimum TTL
300
NS
Nameservers
TXT
TXT Records
v=spf1 ip4:174.142.221.48 include:relay.spamshield.io +a +mx +ip4:174.142.221.56 +include:_spf.google.com ~all
A