Instantly check whether an email address is valid in format, sits on a mail-capable domain, and whether it is disposable, role-based or a free provider.
A correctly formatted address on a live domain can still be a dead mailbox. This tool confirms the syntax is valid, the domain can receive mail, and screens for disposable, role and free-provider addresses, which is a fast first filter. But the only way to know a specific mailbox truly exists is a real-time SMTP check.
That deeper check is what the email verification API adds on top, using a live SMTP handshake plus catch-all and spam-trap detection, so you stop bounces before they happen.
An email format checker confirms that an address is written correctly under the email standard (RFC 5322): a valid local part, a single @, and a properly formed domain. This tool also looks up whether the domain has mail (MX) records and flags disposable, role and free-provider addresses.
No, and this is the key point. Correct formatting only proves the address could exist. It does not prove the mailbox is real or can receive mail. To know that, you need real verification with a live SMTP check, which is what the Email Verifier API does on top of these format checks.
Enter the address above. The tool instantly validates the syntax, checks the domain for mail records, and flags whether it is a disposable, role or free-provider address, all without sending anything.
Format checking is the first, cheapest layer: is the address well-formed and on a mail-capable domain? Verification goes further with a real-time SMTP handshake to confirm the specific mailbox exists, plus catch-all and spam-trap detection. Verification is what actually prevents bounces.
Yes, it is free with no signup. When you are ready to confirm that the mailboxes really exist and stop bounces, every new account gets 100 free verification credits with no card.
More free tools: MX record lookup, disposable email checker. Ready to verify mailboxes? Get 100 free credits.