MARGO FIELD TOOLS 03 / 03
Free bulk email verifier. Check before you send.
A cleaner list makes a better starting point. Check up to 100 email addresses and see which need a second look, without creating an account.
Every address gets a clear result.
Paste your email list or choose a CSV. We’ll remove duplicates, check up to 100 addresses and keep uncertain results clearly marked.
No account. No card. Just a useful first step.A small tool. A useful next step.
- 01Paste or upload your list
- 02Review each result
- 03Download your checked list
GOOD TO KNOW
A few answers
before you start.
Can I verify 100 emails for free without signup?
Yes. You can check a total of 100 unique addresses within a rolling 24-hour period without an account or payment card. Duplicate entries within a submission do not use extra allowance. Rechecking an address in a later submission does count again. Shared service limits also apply.
What do catch-all and unknown mean?
A catch-all domain may accept any recipient address, so the check cannot confirm that a specific mailbox exists. Unknown means the provider could not reach a conclusive answer, for example because of a timeout or server restrictions. Neither means valid.
Does a valid result guarantee delivery?
No. Verification is a point-in-time signal, not a delivery guarantee. A mailbox can change, and delivery also depends on the message, sender reputation, authentication and the receiving server.
What happens to the email addresses I upload?
The list is sent to our verification provider, Apify’s account56/email-verifier, which uses MillionVerifier. Margo does not save the raw list in its usage ledger or cache results on the server. Your browser holds the results until you clear them or leave. The provider processes and may retain data under its own policies; use only lists you are authorised to check.