SPF, DKIM, DMARC, MX, and CAA configuration
SPF
18
/25
DMARC
22
/30
DKIM
0
/20
MX
10
/10
CAA
0
/10
v=spf1 a mx include:spf.protection.outlook.com include:spf.hornetsecurity.com include:_spf.perfora.net include:mail.zendesk.com include:_spf.kundenserver.de ~allv=DMARC1;p=quarantinemx02.hornetsecurity.com.mx03.hornetsecurity.com.mx04.hornetsecurity.com.mx01.hornetsecurity.com.