Free Email Verifier
Check any email address with a real SMTP handshake, not just syntax. Instantly see if it's deliverable, risky or invalid. No signup.
What this email checker verifies
Syntax & MX records
Validates the address format and confirms the domain actually has mail servers configured.
Live SMTP handshake
Connects to the recipient's mail server and asks if the specific mailbox exists, without sending anything.
Catch-all & disposable
Flags catch-all domains, parked domains and disposable addresses that silently kill deliverability.
Why verify emails before sending?
Bounce rate is the strongest negative signal mail providers track. Send to a list with 10%+ invalid addresses and Gmail or Outlook will start routing everything you send to spam, even mail to valid contacts.
Verified lists keep bounces under 2% and inbox placement up to 97%. That's the difference between cold email that books meetings and cold email that burns domains. Read our deliverability guide or explore bulk verification.
Customer reviews
2,400+ users. Real results.
Don't take our word for it
Frequently asked questions
How does the free email verifier work?
It checks syntax, MX records and performs a live SMTP handshake with the recipient's mail server to confirm whether the mailbox exists, without sending an email.
Is this email checker really free?
Yes. Verify up to 10 addresses per day, no signup required. Bulk verification of thousands of emails is included in Getlead lifetime plans.
What does a 'risky' result mean?
Usually a catch-all domain (accepts mail for any address, so the specific mailbox can't be confirmed) or a disposable email address.
Can I verify a whole list at once?
Bulk CSV verification is a Getlead plan feature: lifetime access from $9.90, verify thousands of emails per batch.