Quick Start Guide
1. Create Account
First step is to create an account on DMARC Defender. You can sign up here:
Sign Up for DMARC Defender
Sign Up for DMARC Defender
2. Setup Domain
After creating your account, you'll be redirected to the Setup Domain page. Type in the domain you want to protect with DMARC Defender.
After entering your domain, the wizard will generate a unique DMARC policy for your domain.
After entering your domain, the wizard will generate a unique DMARC policy for your domain.
3. Configure DNS
Next you'll need to update your domain's DNS records to include the DMARC policy. We'll be adding a TXT record to your DNS settings. Here are the details you'll need to add:
To verify the DNS record has been added correctly, you can use our free domain check tool.Verify DNS records
- Record Type
- TXT
- Host/Name
- _dmarc.yourdomain.com
- Value
- Generated policy from previous step:
v=DMARC1; p=none; rua=mailto:example@example.com
- TTL
- 3600 seconds (1 hour)
To verify the DNS record has been added correctly, you can use our free domain check tool.Verify DNS records4. Monitor Reports
After updating your DNS records, it may take some time for the changes to propagate. Once propagated, DMARC Defender will start receiving DMARC reports for your domain. You can monitor these reports in the DMARC Reports section of the dashboard. This may take 24-48 hours before reports are received.
Once reports are received, you can analyze them to understand how your domain is being used and identify any unauthorized email sources. It's possible there are authorized senders for your domain that are missing DKIM/SPF records. DMARC Defender will help recognize those domains and assist you in adding the necessary records.

5. Adjust DMARC Policy
Once you feel comfortable with the reports and have ensured all legitimate email sources are properly authenticated, you can adjust your DMARC policy to a more restrictive setting (e.g., quarantine or reject) to enhance your domain's email security. You can use the setup wizard to generate an updated policy.All done! You have successfully set up DMARC Defender for your domain. Make sure all domains you own are protected by repeating these steps for each domain.
v=DMARC1; p=reject; rua=mailto:dmarc@yourdomain.com