Add DMARC Check for onmicrosoft.com domain

[Simulator001]

Just an idea, you can add a check if dmarc is set for the onmicrosoft.com domain..

v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s

[Alfredo911]

We can't really do much "DNS changes" when it comes to a domain you don't own.