Free Email Verifier
The Email Verifier paying customers use, free for three checks a day. Runs a real SMTP handshake, catches disposable, catch-all, role, and spam-trap addresses other tools miss.
We don't just check DNS — we open an SMTP conversation with the recipient mail server.
If our primary verification engine can't return a definitive answer, we automatically retry through a second one.
If both engines still can't deliver an answer, we don't count it against your free attempts.
Beyond a basic SMTP check
The four failure modes free tools miss
Free SMTP testers tell you whether a mailbox exists. That's necessary, but it's not enough to protect your sender reputation. Here's what we catch on top.
Disposable mailboxes
Free SMTP checks happily say 'valid' to a 10-minute mailbox.
Provider-grade disposable detection — temporary inboxes are flagged before they reach your list.
Catch-all domains
The mail server says yes to every address — looks valid, often isn't.
We flag catch-alls separately so you can send with appropriate caution.
Spam traps
A single hit can tank your sender reputation for weeks.
Screened against known trap patterns before you ever send.
Role & inactive accounts
info@, admin@, no-reply@ — low engagement, high spam-complaint risk.
Flagged as Role Account so you can deprioritize without removing.
How our verifier works
Four real checks running in milliseconds against the recipient mail server — no guessing.
Syntax & domain check
We confirm the address is well-formed and the domain exists.
MX record lookup
We resolve the domain's mail servers and verify they accept mail.
SMTP handshake
We open a real SMTP conversation with the mail server to confirm the mailbox is reachable.
Risk classification
We flag disposable, role-based, catch-all, and known spam-trap addresses you should avoid.
Need to verify more than three?
Sign up free and get 200 credits — verify up to 200 addresses with the full report, plus bulk uploads, API access, and integrations with HubSpot, Mailchimp, and 14 other platforms.
Common questions
How accurate is this free email verifier?+
Same provider stack we use for paying customers — 99%+ accuracy with full SMTP handshake, MX validation, disposable + role detection, and spam-trap flagging.
Is my email data private?+
Yes. We don't store the email you check, don't sell data, and never share it. The verification happens server-side, and the result is shown only to you.
Why can I only verify 3 emails per day?+
To keep this tool free and abuse-free. If you need more, sign up free and get 200 credits — that's 200 verifications, no card required.
What does each status mean?+
Safe = deliverable. Invalid = will bounce. Disposable = temporary/throwaway. Catch-All = domain accepts everything (risky). Role Account = generic mailbox (info@, admin@). Spam Trap = avoid. Disabled = mailbox closed. Inbox Full = over quota.