Email Verifier: Check If an Address Can Receive Mail
Check one address or a whole list for format mistakes, dead domains, disposable inboxes, role accounts, and likely typos. Free, no sign-up.
Free with no sign-up. Checks run in your browser. To look up mail servers, the domain you enter is sent to Google Public DNS; nothing is sent to Tutti or stored.
Addresses to check
One address per line, or paste a whole list
How it works
- Paste one address or a whole list, one per line.
- Each address is checked for valid format and a domain that exists.
- The domain's mail servers (MX records) are looked up to see whether it accepts mail.
- Known disposable inboxes, role addresses like info@, and likely domain typos are flagged.
- Results are graded: looks deliverable, check first, or invalid, with the reason for each.
What this cannot check
No free browser tool can confirm that a specific mailbox exists. That requires connecting to the receiving server and asking, which gets a sender blocked when it is done at volume. This verifier instead removes the mistakes that cause most hard bounces: bad formats, dead or misspelled domains, and inboxes that were never meant to last.
For the source list itself, run it through the duplicate email cleaner first, then check the rest of your setup with the deliverability checklist.
Frequently asked questions
Does a pass here mean the mailbox exists?
No. Confirming a mailbox requires connecting to the receiving mail server, which this tool does not do. It checks format, domain existence, and mail server records, plus known patterns that predict bounces, such as disposable domains and role addresses.
Is my list uploaded or stored?
The addresses themselves are not sent to Tutti. To look up mail servers, the domain of each address is queried through Google Public DNS from your browser, and the results are shown only to you.
Why flag role addresses like info@ or sales@?
They are valid and often the right inbox for a small company, but they are shared, automated, or routed to several people, so replies and deliverability signals are weaker. Treat a flag as a note to consider a named contact, not as an error.
What does check first mean?
The address can probably receive mail, but something lowers confidence: a disposable provider, a role address, a missing MX record, or a domain that looks like a misspelling of a popular provider. Fix or replace those before sending.
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Disclaimer: these free tools are provided for general information only, as-is and without warranties of any kind. They are not legal, compliance, security, financial, or other professional advice, and no result is a guarantee that a message will be delivered, accepted, or compliant. You are responsible for reviewing every result before relying on it or sending anything based on it. To the maximum extent permitted by law, Tutti accepts no liability for any loss or damage arising from the use of these tools or from reliance on their output. Your use is also governed by our Terms of Service.