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

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.Setup DomainAfter entering your domain, the wizard will generate a unique DMARC policy for your domain.Recommended Policy

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:
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)
An example for AWS Route53. can be seen here, but your DNS provider's UI may differ:DNS Setup ExampleTo verify the DNS record has been added correctly, you can use our free domain check tool.Verify DNS records

4. 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.DMARC Reports

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.

v=DMARC1; p=reject; rua=mailto:dmarc@yourdomain.com

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.