SPF, DKIM, DMARC, MX, and CAA configuration
SPF
18
/25
DMARC
13
/30
DKIM
0
/20
MX
10
/10
CAA
0
/10
v=spf1 include:us._netblocks.mimecast.com ip4:63.137.115.249 include:_spf.act-on.net include:spf.protection.outlook.com include:amazonses.com include:mediaintranets.net include:sendgrid.net ~allv=DMARC1; p=noneus-smtp-inbound-1.mimecast.com.us-smtp-inbound-2.mimecast.com.