SOA
Start of Authority
Primary NS
Mailbox
awsdns-hostmaster.amazon.com
Serial
2016112301
Refresh
7200
Retry
900
Expire
1209600
Minimum TTL
86400
NS
Nameservers
MX
Mail Exchangers
TXT
TXT Records
v=spf1 ip4:54.240.61.52 ip4:54.240.61.53 ip4:54.240.61.54 include:_spf.google.com include:amazonses.com include:sendgrid.net ~all