Free bulk email verifier
Bulk email verifier: check a list of up to 50 addresses
Paste a list or upload a .csv or .txt file and this free bulk email verifier checks up to 50 addresses, three at a time, then lets you sort, filter and download the results as a CSV file. It catches typos, domains that can't receive mail, disposable and role addresses, and confirms Outlook.com and Hotmail accounts. No account, no credits, and nothing is stored.
What gets checked
Does it exist?
Asks the mail provider where it can. No email is sent
What happens if you email it
Delivered, bounces or might bounce
What kind of address
Personal Gmail, domain email or a throwaway inbox
Where the mail goes
Its own inbox, or forwarded somewhere else
Typos
Fixes slips like gmial.com
Advanced details
Score, MX, SPF, DMARC and the mail-server log
Recent checks
Saved only in this browser.
Paste addresses one per line, or separated by commas.
How to verify a list of email addresses
- 1
Paste or upload the list
Paste addresses one per line, or separated by commas, semicolons or spaces. Or upload a .csv or .txt file up to 1 MB. Duplicates are removed and “Name <name@example.com>” entries are understood.
- 2
Run the check
Press Check and up to 50 addresses are checked three at a time, with a progress bar. You can stop the run at any point and keep what's done.
- 3
Filter and export
Sort by email, verdict, score or provider, filter to Valid, Risky, Unconfirmed or Invalid, and download everything as a CSV file to clean your list in a spreadsheet.
What the bulk check finds in your list
Addresses that will bounce
Domains that don't exist, domains with no mail server or a Null MX, Outlook and Hotmail accounts Microsoft says don't exist, and forwarded addresses a domain doesn't route anywhere.
Typos
Slips like gmial.com, hotmial.com or name@company.con get a “Did you mean…?” suggestion, which is also in the CSV.
Disposable inboxes
Throwaway addresses from Mailinator, 10 Minute Mail, YOPmail and nearly 10,000 other disposable domains are marked Risky.
Role and free addresses
info@, sales@, support@ and other team inboxes are flagged, and so are free webmail providers, so you can tell a personal Gmail from a company address.
Provider and setup
Each row shows the mail provider (Gmail, Microsoft 365, Zoho and more) and a one-line reason, and the CSV adds the MX server and whether the address has a public Gravatar.
What stays Unconfirmed
Gmail, Yahoo and most company domains only confirm a mailbox to a direct mail-server check, which isn't available on this site right now. Those rows say “Not confirmed”: the domain is fine, the mailbox itself is unknown.
Is this the right tool for your list?
It's built for small lists you want to tidy before sending: event or webinar sign-ups, a form export, a handful of leads, or a contact list after an import. It's free with no account, and the CSV keeps every detail. For lists of thousands of addresses, or when you need every Gmail mailbox confirmed, a paid list-cleaning service that runs its own mail servers will go further.