How to Create and Deploy a DMARC Record for Your Domain
⚠️ Technical Alert
Symptoms Checklist
If you observe any of the following symptoms, your site or setup is affected by this issue:
- Email deliverability reports warning: 'DMARC Policy Not Found'
- Gmail or Yahoo headers showing 'dmarc=none' or failing checks
- High volumes of spoofed emails impersonating your domain name
- Spam filters routing domain emails to junk due to weak brand protection
Why This Happens
Without a DMARC record, receiving servers don't know what to do if an email fails SPF or DKIM checks. Adding DMARC tells them how to handle spoofed emails, boosting your domain authority.
Common Underlying Causes
- Never Configured: Many registrars don't set up DMARC by default, requiring you to add a custom TXT record.
- Missing Subdomain Policy: Missing a policy for subdomains ('sp=none/quarantine/reject') if you send mail from subdomains.
DIY Quick Fix Steps
Here is what you can check or execute immediately to troubleshoot the issue:
- Log into your DNS provider (e.g. Cloudflare).
- Add a new TXT record with host name '_dmarc' (which translates to _dmarc.yourdomain.com).
- Set the value to: 'v=DMARC1; p=none; rua=mailto:dmarc-reports@yourdomain.com'. This initiates monitoring without blocking.
- Wait for DNS propagation and check using a DMARC analyzer.
⚠️ Caution: Changing DNS, server logs, or WordPress databases incorrectly can cause site downtime. If you're not comfortable, skip these steps and hire assistance.
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