Instantly verify email deliverability with RFC validation, DNS/MX checks, disposable detection, and real SMTP probing.
info Guests can verify 5 emails/day. Sign up and subscribe to a plan for full access.
Up to 5 free scans per day.
Four validation phases to maximize accuracy
Full RFC 5321/5322 syntax check. Catches malformed addresses, invalid characters, and structural errors before any network call.
Resolves MX records to confirm the domain has working mail infrastructure. Checks SPF, DMARC, and BIMI for deliverability signals.
Blocklist of 500+ known disposable providers. Real-time IP fingerprinting and live API consensus catches new burner services instantly.
Performs an actual SMTP handshake to confirm the mailbox exists. Detects catch-all domains and greylisting without sending an email.
Shannon entropy scoring detects machine-generated addresses, keyboard walks, and random strings that indicate bot registrations.
Levenshtein distance matching against 40 top email providers. Catches gmial.com, yahooo.com, and other common typos automatically.
Create a free account to validate unlimited emails and access the API.
