Free Email Verifier
Verify an email's validity by checking syntax, MX records, mailbox status, and disposable or role-based flags.
# free & rate-limited · no signup · live results from the same engine as the API
Since the engine is the same one the API runs, a key does not buy you a better answer. It buys volume, bulk jobs and a signed receipt.
Three quick steps
Live verification runs
We validate syntax, MX records, SMTP mailbox, and flags.
Read results
See if it's valid, deliverable, risky, or disposable.
Syntax validation
RFC-compliant checking to catch typos and bad formats.
MX record lookup
Verify the mail server exists and is configured.
SMTP mailbox check
Confirm the mailbox exists without sending email.
Disposable & role flags
Identify temporary, disposable, and role-based addresses.
Who uses it
Email marketers
Reduce bounce rates before campaigns.
List cleaners
Deduplicate and clean contact lists.
Developers
Validate emails at signup.
Sales teams
Qualify leads with valid contacts.
FAQ
How does the email verifier work?
It checks syntax, resolves MX records, performs an SMTP mailbox check without sending an email, and flags disposable and role-based addresses — then returns a deliverability verdict.
What about catch-all domains?
Catch-all domains accept all addresses, so mailbox existence can't be confirmed with certainty. The API flags these so you can treat them as risky.
Can I verify emails in bulk?
Yes. A free account can run 100 rows on the trial. Longer lists, async jobs and webhooks sit on a paid plan.