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Free TLS Checker

Free

Analyze and verify with our free TLS Checker. Get instant, accurate results to protect your domain and email reputation. 100% free.

Check Mail Server TLS
Enter a domain to resolve its MX record and check ports 465 and 587.

Frequently Asked Questions

What is the TLS Checker tool?

This tool performs deep analysis and lookups to verify configurations, helping you ensure optimal deliverability and security.

Is the TLS Checker completely free?

Yes! All utilities on freemailtools.com, including the TLS Checker, are 100% free to use with absolutely no registration required.

Is my data secure when using this tool?

Absolutely. We process data securely and do not store sensitive email content or configurations permanently on our servers.

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