Free email verifier
Know an address works, before you send.
Data Scout checks each address the way a mail server would and tells you how it knows — not just yes or no. The free plan includes 100 verifications a month, no credit card.
Or add the free Chrome extension — no account needed.
How an address is checked
Syntax and shape
Malformed addresses and throwaway domains are caught before any mail server is asked, and cost nothing. Role accounts and gibberish local parts are flagged as risky.
Domain
The domain must publish mail servers (MX) that accept connections.
Mailbox
The mail server is asked whether the mailbox exists, without sending a message.
Catch-all detection
Domains that accept every address are flagged, so an “accepted” answer is not mistaken for proof.
Fair billing
A verification counts only when we reach a conclusive verdict — an unknown result is never charged. A find counts only when an address is confirmed — pattern guesses are returned free. A cached verdict counts as half a verification, and re-checking an address you already paid for is free.
One address or a list
Check a single address, or upload a CSV and verify the list as a job.
Questions
- Is it really free?
- Yes — 100 verifications a month on the free plan, with no credit card. An inconclusive result is never counted.
- Does checking send an email to the person?
- No. The mail server is asked about the mailbox and the conversation ends before any message is sent.
Your next lead is one audit away
Start free — 250 site audits a month, no credit card, and the extension audits every page you visit at no cost.
Create your free account