Free toolsUpdated 5/13/2026
Free email verifier — verify 1,000 emails on signup
Cleaning a 1,000-row email list before a campaign is the cheapest insurance you can buy. 1,000 free signup credits = 1,000 verifications. No card.
What we check
Syntax, MX records, SMTP handshake (no email sent), catch-all detection.
How accurate is it
About 95-98% on standard SMTP-responsive domains. Catch-alls are explicitly flagged so you can choose to skip them.
Tools mentioned in this guide
How Kavex compares to alternatives
We don't hide from comparisons. Each link below is an honest side-by-side breakdown.
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1,000 free credits on signup. No credit card.
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