How to add DMARC in DirectAdmin?
You can easily add a DMARC record in DNS for your email in DirectAdmin by doing the following:
Go to the Account Manager menu item and choose DNS Management
Click on the domain name you want to update
Click the ADD RECORD button
For Record Type choose TXT
For TXT Record Type choose DMARC
From there you can click the ADD button to save the DMARC record as-is, which is sufficient for general use or you can fine tune it to your preferences.
That's it! Your domains will now have a TXT record in DNS for DMARC!