SPF, DKIM, DMARC, MX, and CAA configuration
SPF
18
/25
DMARC
13
/30
DKIM
0
/20
MX
10
/10
CAA
10
/10
v=spf1 a ip4:93.191.161.76 ip4:93.191.161.77 include:_spf.google.com ~allv=DMARC1; p=none; sp=none; adkim=r; aspf=rsmtp.google.com.letsencrypt.orgletsencrypt.org