Free Email Verifier

Check whether a business email address exists and will deliver, before you send. One verdict, a plain reason and a confidence rating. Free, no signup.

5 free live checks per day. Cached and DNS results never count.
Business addresses only. Verification talks to the mail server, never to the person; nothing is sent. Addresses you check here may be added to Lakewave's shared verification data; names and companies are not collected.
What a verdict means

Five answers, and what to do with each

✓

Valid

The mail server confirmed the mailbox exists and accepts mail. Safe to send.

✕

Invalid

The mailbox does not exist. Sending here bounces and counts against your sender reputation.

~

Accept-all

The domain accepts every address, so the mailbox cannot be proven from outside. Treat as unverified until a second signal confirms it.

?

Unknown

The mail server would not give a definitive answer. Lakewave resolves most of these inside the product.

Beyond one address

Have a whole list to check?

Upload an export from any contact database or CRM and List Clean re-verifies every row through the same checks, hands back your CSV with a verdict and stars per address, and charges only for definitive answers. Need people you do not have yet? The Verified Email Finder finds them by title and company and verifies as it goes.

FAQ

Questions, answered

How does the free email verifier work?

It checks the address against what Lakewave already knows and against the mail server itself, then gives you a verdict, a plain-language reason and a 1 to 5 star confidence rating.

Why does it say accept-all?

Some domains accept mail for every address, real or not, so no checker can prove a particular mailbox exists from the outside. Lakewave resolves accept-all domains inside the product and rates the result instead of guessing.

Does checking an address send anything to it?

No. Verification talks to the mail server, never to the person. Nothing is delivered and the recipient never knows a check happened.

How many checks are free?

Five live checks per day per visitor, with no signup. Results Lakewave already holds, and dead-domain results, do not count. A free Lakewave account removes the daily limit and adds bulk cleaning.

Is this the same as Lakewave's contact verification?

It is the front half of it. Inside Lakewave every contact goes through the full verification process and is checked again right before each send, so a stale address never goes out.

See the difference yourself.

15 verified contacts free. No credit card. No sales call required.

Create free account →