SPF, DKIM, DMARC, MX, and CAA configuration
SPF
18
/25
DMARC
22
/30
DKIM
0
/20
MX
10
/10
CAA
v=spf1 a mx ip4:212.25.15.196 ~all
v=DMARC1; p=quarantine; adkim=s; aspf=s
mail.fona.de.