SOA
Start of Authority
Primary NS
Mailbox
awsdns-hostmaster.amazon.com
Serial
1
Refresh
7200
Retry
900
Expire
1209600
Minimum TTL
86400
TXT
TXT Records
v=spf1 ip4:38.101.186.234 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.0.0/16 include:us._netblocks.mimecast.com include:mail.imismailcenter.com include:spf.protection.outlook.com include:informz.net ~all