Email Authentication
cloud.microsoft
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;pct=100;aspf=s;adkim=s;rua=mailto:rua@dmarc.microsoft;ruf=mailto:ruf@dmarc.microsoft