Email Security & Deliverability Checker (SPF, DKIM, DMARC)
Inspect your domain MX, SPF, DMARC, and DKIM DNS records to prevent email spoofing, phishing, and spam folder delivery.
About the Email Security Check
Validate DNS records for SPF syntax, DKIM alignment, and DMARC enforcement policies. Use it as a quick first review, then prioritise improvements that matter most to your visitors and business goals.
How to get better results
- Use HTTPS on every public URL.
- Review security headers after platform changes.
- Keep DNS authentication records maintained.
Important: It does not perform intrusion testing, vulnerability exploitation, or a complete security certification.
Email Security Check FAQs
What does the Email Security Check do?
Validate DNS records for SPF syntax, DKIM alignment, and DMARC enforcement policies. It is designed to help you identify practical next steps without needing to install software or create an account.
How does the Email Security Check work?
The tool inspects publicly exposed HTTP headers or DNS records and highlights configuration gaps. Results are based on the URL, domain, or values you submit at the time of the check.
Why is Email Security Check important?
It helps ensure your public website and business communications present stronger trust and security signals. Small issues can compound across search visibility, user trust, and business enquiries.
Are the Email Security Check results completely accurate?
It does not perform intrusion testing, vulnerability exploitation, or a complete security certification. Use the result as a practical starting point and validate important changes in your live environment.