Free tool
Verify an email. See the proof.
Paste one address. We check the format, the MX record, and the quick-scan signals, then tell you in one sentence whether it is safe to send to.
We don't save the email address you check.
Good to know
What email address verification tells you
An email address verifier checks whether an address can receive mail without sending anything. It validates the format, looks up the domain's MX record to confirm a mail server exists, checks for disposable providers, and scores the address against known typo patterns.
Use it before sending to a new contact, when a signup form looks suspicious, or to understand why a past message bounced hard. The check list shows exactly what was inspected so the verdict is never a black box.
91-93% real-world accuracy on full verification. Some servers hide behind a catch-all, which is why those addresses come back risky instead of a guess.
How does email address verification work?
It runs several checks without sending any mail. First, it validates the format. Then it looks up the domain's MX record to confirm a mail server is configured. It also checks for disposable providers, role-based prefixes like
info@, and known typo patterns. All of that produces the verdict you see.Can you check if an email address really exists?
A quick scan covers the format and domain infrastructure. The full MailCull product adds a live SMTP probe that opens a session with the mail server and shows the exact RCPT TO reply, which is the strongest signal available short of sending a real message.
What does it mean when an address comes back risky?
Risky usually means one of: the domain looks like a common typo (e.g. gmaill.com), the local part is a shared-inbox prefix like
info@ or support@ that may exist but is unreliable for personal outreach, or the provider is known to accept all mail regardless of whether the mailbox exists.Why does an address come back as unknown?
Unknown means the scan could not get a clear signal, typically because the DNS lookup was inconclusive or the domain's mail server configuration was ambiguous. It is not a yes and not a no. The full SMTP probe can often resolve these.
Do you store the address I check?
No. We don't save the email address you check.