SPF, DKIM, DMARC, MX, and CAA configuration
SPF
25
/25
DMARC
16
/30
DKIM
0
/20
MX
10
/10
CAA
0
/10
v=spf1 ip4:78.25.43.130 ip4:78.35.43.146 mx include:spf.protection.outlook.com include:servers.mcsv.net include:spf.cleverreach.com a -allv=DMARC1; p=none; adkim=s; aspf=s; rua=mailto:dmarc@rfw-koeln.de;pepper.fredwipperfuerth.de.