See which emails will bounce, free
Paste a list or upload a CSV. BounceLens finds bad syntax, dead domains, typos like gmial.com, throwaway addresses and duplicates. Free with no daily limit, and your list never leaves your browser.
| Result | Why | Mail provider |
|---|
What the free check does
Format and typos
Catches broken addresses and suggests fixes for mistyped domains (gmial.com → gmail.com).
Domain and mail server
Checks the domain exists and has a mail server (MX). Dead domains are marked invalid.
Throwaway, role and duplicates
Flags disposable domains, shared inboxes like info@, and duplicates, including Gmail dot and +tag copies.
The free check does not log in to mail servers, so it cannot tell whether a mailbox exists. Addresses that pass are marked unconfirmed, not "verified".
Free checks for one job
- Free email checker, no signup
- Disposable email checker: find throwaway addresses
- Email typo checker: find gmial.com and other mistyped domains
- Remove duplicate emails: including Gmail dot and +tag copies
- Email extractor: pull every address out of any text
- Role-based email checker: find info@, sales@ and other shared inboxes
- MX record checker: can a domain receive email, and who hosts it?
- SPF, DMARC and DKIM checker: will Gmail and Outlook trust your emails?