Email Authentication
mercadoshops.com.ar
SPF
passDeclares which servers may send mail for this domain.
v=spf1 -all
DKIM
failCryptographic signature on outbound mail (selector: default).
v=DKIM1; p=
DMARC
passTells receivers what to do with mail that fails SPF/DKIM. Policy: reject.
v=DMARC1; p=reject; sp=reject; aspf=s; pct=100