SPF, DKIM, DMARC, MX, and CAA configuration
SPF
18
/25
DMARC
13
/30
DKIM
0
/20
MX
10
/10
CAA
v=spf1 a mx ip4:217.160.14.56 ~all
v=DMARC1; p=none
mail.3w-hosting.de.