SPF, DKIM, DMARC, MX, and CAA configuration
SPF
13
/25
DMARC
30
/30
DKIM
0
/20
MX
10
/10
CAA
10
/10
v=spf1 mx ip4:109.75.28.0/24 ip6:2a13:c280::13 ip6:2a13:c280::14 ip6:2a13:c280::15 include:spf.protection.outlook.com ?allv=DMARC1;p=reject;pct=100;rua=mailto:dmarc@transmit.de;ruf=mailto:dmarc@transmit.de;aspf=r;adkim=rmx1.transmit.de.mx3.transmit.de.mx2.transmit.de.letsencrypt.orgsectigo.comsectigo.com