Free Online Email Verifier
Don't let fake users clutter your database. Validate emails, detect hidden disposable domains, and verify real inboxes instantly.
Stop Guessing. Know Who's Real.
Accepting fake emails is a silent killer for your app. It ruins your sender reputation and fills your database with junk. Our tool goes beyond simple syntax checks. We act as a firewall against burner accounts and non-existent users.
Most verifiers only check if a domain looks like 'tempmail.com'. We go deeper. We analyze the DNS infrastructure (MX and NS records) to catch disposable services that try to hide behind custom domains. If it smells like a burner, we block it.
How We Verify (The Technical Bit)
- Syntax & Typos: We fix common mistakes (like gmil.com) and ensure the format is valid.
- Infrastructure Fingerprinting: We check if the domain is hosted on known disposable email servers (like GuerrillaMail or Yandex for domains).
- Smart SMTP Probe: For valid domains, we perform a polite 'handshake' with the mail server to confirm the specific user exists—without ever sending an actual email.
Integration Decision Matrix
Not sure how to handle the API response? Here is a simple guide on how to interpret our risk scores.
| Scenario | API Indicators | Recommended Action |
|---|---|---|
| Valid User | Score: 0-1, MX: True | Allow Signup |
| Burner/Disposable | Disposable: True, Score: 10+ | Block Immediately |
| User Doesn't Exist | SMTP Rejected: True, Score: 5+ | Block (Hard Bounce) |
| Risky / Role | Role: True, or Risky TLD (.tk) | Allow with Email OTP |