SPF Checker
Validate SPF syntax, policy and DNS lookup limits.
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Email Security Checker RECOMMENDED
Check SPF, DKIM, DMARC, MX records and email configuration of your domain in one place.
Check Results
Enter a domain and click “Check Now” to see the results.
SPF−
Not checked
DKIM−
Not checked
DMARC−
Not checked
MX Record−
Not checked
Security Score−
Not checked
Email Tools
DKIM Checker
Verify a DKIM public key using its selector.
DMARC Checker
Review DMARC policy, alignment and reporting tags.
Other Server Tools
Server Tool
How to use Email Security Checker
- Enter the domain you want to check, such as example.com.
- Optionally enter the DKIM selector. Leave it empty to test common selectors.
- Click “Check Now” to analyze the important email authentication records.
- Review the results and recommendations, then fix any detected issues.
💡 Tip: After changing DNS records, wait 5–30 minutes or the provider’s stated TTL before checking again.
Why Email Security Matters
- Protect your domain from spoofing and phishing.
- Improve email deliverability and sender reputation.
- Give receiving servers clearer authentication signals.
- Use DMARC reports to monitor unauthorized mail sources.
- Build trust with customers and business partners.
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100% FreeUse all tools without creating an account.
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Fast & AccurateReal-time checks with resolver fallbacks.
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Private & SecureQueries are not stored by the theme.
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Easy to UseA clean interface for technical and non-technical users.