SPF, DKIM, DMARC, MX, and CAA configuration
SPF
25
/25
DMARC
22
/30
DKIM
0
/20
MX
10
/10
CAA
10
/10
v=spf1 a:smtp-out.aaront.org -allv=DMARC1; p=quarantine; sp=reject; adkim=s; ruf=mailto:mail-reports+dmarcf@aaront.org; fo=1smtp-in.aaront.org.;;letsencrypt.org;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/18789223;mailto:noc@aaront.org