Quote Originally Posted by abfunders View Post
Actually that's a very specific company's way to add it
Most of us have cPanel, and the way to do this is go into the Zone Records:
https://www.namecheap.com/support/kn...for-my-domain/
(someone out there on the web recommended TTL at 3600)

Free tool to check to see if your host already gave you a DMARC policy, I just found out that Namecheap added one for me: https://mxtoolbox.com/DMARC.aspx
Most Hosting companies provide access to Advanced DNS Records - some add automatically - but not the DMARC Email Address which has to be added manually.