
Verify email addresses in real time with syntax, MX record, disposable, and SMTP checks. Identify invalid or risky emails before they hurt your sender reputation.
Reoon Email Verifier is an email validation API that helps sales, marketing, and growth teams verify email addresses before sending campaigns. It checks syntax, MX records, disposable email providers, spam traps, and role accounts - giving you a clear signal on whether each email is worth targeting.
The API offers two modes. Quick Mode returns results in under 0.5 seconds and covers the essentials: syntax validation, MX checks, disposable detection, and spam trap flags. Power Mode performs a full SMTP handshake against the mail server and adds a deliverability score from 0 to 100, a safe-to-send flag, catch-all detection, and inbox status. Power Mode is the right choice for cleaning large prospect lists where deliverability matters most.
Use Reoon Email Verifier to reduce bounce rates, protect sender reputation, and improve email campaign ROI. Common use cases include validating leads from contact forms, enriching CRM records with deliverability data, and scrubbing cold outreach lists before launching sequences.