SPF, DKIM, DMARC, MX, and CAA configuration
SPF
18
/25
DMARC
13
/30
DKIM
0
/20
MX
10
/10
CAA
v=spf1 include:_spf-us.ionos.com ~all
v=DMARC1; p=none;
mx00.ionos.com.
mx01.ionos.com.