Email Validator & MX Record Checker
Validate email addresses in real time with RFC 5322 syntax checks, DNS MX lookups, disposable domain detection, and security scoring. Prevent fraudulent signups and maintain clean mailing lists before they reach your CRM.
Run a validation to see detailed breakdowns of syntax rules, MX lookups, disposable matches, and provider reputation. You can switch to the Bulk tab to process up to 10,000 emails from a CSV file.
Need Help with Email Deliverability?
Our team can configure SPF, DKIM, DMARC and optimize your email infrastructure for maximum deliverability.
Frequently Asked Questions
Common questions about the Email Validator & MX Checker
Email validation verifies that an email address is correctly formatted and that the domain can receive emails. It helps reduce bounce rates, protect sender reputation, prevent typos, fight spam from disposable emails, and improve conversion rates by ensuring users can receive confirmation emails.
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ℹ️ Disclaimer
This tool is provided for informational and educational purposes only. All processing happens entirely in your browser - no data is sent to or stored on our servers. While we strive for accuracy, we make no warranties about the completeness or reliability of results. Use at your own discretion.