SPF, DKIM, DMARC, MX, and CAA configuration
SPF
18
/25
DMARC
30
/30
DKIM
0
/20
MX
10
/10
CAA
0
/10
v=spf1 include:_spf.google.com ~allv=DMARC1; p=reject; ruf=mailto:support@chin.net.au; sp=reject; adkim=s; fo=0:1:d:s;alt4.aspmx.l.google.com.aspmx.l.google.com.alt2.aspmx.l.google.com.alt1.aspmx.l.google.com.alt3.aspmx.l.google.com.