SPF, DKIM, DMARC, MX, and CAA configuration
SPF
25
/25
DMARC
13
/30
DKIM
0
/20
MX
10
/10
CAA
0
/10
v=spf1 a mx include:_spf-eu.ionos.com ip4:83.246.75.201 ip4:83.246.83.179 ip4:193.201.52.2 include:turbo-smtp.com include:_spf.hosting.ionos.de -allv=DMARC1; p=nonemail.vc-net-systems.de.