Leads and lists

Verify a list with the Email Verifier

Check one address or a whole list, read the nine result groups, and download them.

The Email Verifier checks whether each address can receive email, without sending anything.

Check addresses

Open Email Verifier.
Check one address, upload a CSV, or paste a list.

Your first 100 checks are free; after that, buy a credit pack.

The results

Results come in nine groups, such as Valid, Invalid, Catch-all and Disposable. Send to Valid; remove Invalid and Disposable; treat Catch-all with care, at low volume.

Download all the results or one group, with your original columns kept. A check that comes back Unknown is refunded. Results are kept for 60 days.

Updated November 1, 2026. Still stuck? Ask on the chat in the corner: a real person answers.

Everything for cold email, in one place.

Start free for 14 days. No card needed.

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