SPF, DKIM, DMARC, MX, and CAA configuration
SPF
18
/25
DMARC
16
/30
DKIM
0
/20
MX
10
/10
CAA
10
/10
v=spf1 mx ptr a:mxserver.www.com.ar a:www.com.ar ip4:200.123.185.101 include:sendgrid.net ~allv=DMARC1; p=none;rua=mailto:postmaster@www.com.ara.mx.www.com.ar.letsencrypt.org