== TLDR ==
You '''need''' to have [[SPF]] and [[DKIM]] properly established first.
(assuming your domain is 'example.com') Publish a DNS TXT record with this label:<br />
<code>_dmarc.example.com</code><br />
and this value<br />
<code>v=DMARC1; p=none; rua=mailto:postmaster@example.com;</code>
== Background ==
https://dmarc.org/wp-content/uploads/2015/02/DMARC-2015-logo-small-202x110.png
https://dmarc.org/
== IETF Specification ==
https://tools.ietf.org/html/rfc7489
== Vendors ==
https://dmarcian.com/ is a place where you can get your reports nicely aggregated and reported.
== See Also ==