SPF, DKIM, DMARC, MX, and CAA configuration
SPF
25
/25
DMARC
22
/30
DKIM
0
/20
MX
10
/10
CAA
0
/10
v=spf1 include:spf.secumail.de include:_spf.perfora.net include:_spf.kundenserver.de include:spf.protection.outlook.com include:spf.crsend.com -allv=DMARC1; p=quarantine; pct=100; adkim=r; aspf=rmx-b.secumail.de.mx-a.secumail.de.