SPF, DKIM, DMARC, MX, and CAA configuration
SPF
18
/25
DMARC
22
/30
DKIM
0
/20
MX
10
/10
CAA
v=spf1 mx ptr include:spf.protection.outlook.com a include:amazonses.com ~all
v=DMARC1; p=quarantine;
sdwalumni-de0i.mail.protection.outlook.com.