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Solution
Disposable email detection, SMTP deliverability, line-type classification, and OTP — in one call.
From £0.01 per check.
Full email intelligence: RFC 5322 syntax validation, MX record lookup, disposable/temporary domain detection (3,000+ domains), role-address flagging, SMTP deliverability probe, and Have I Been Pwned breach history — without sending the email.
Full phone intelligence: libphonenumber-js parsing for 250+ countries, line-type classification (mobile / fixed / VOIP / toll-free), carrier lookup, ported-number detection, and optional OTP delivery via SMS. VOIP and virtual number ranges are flagged as medium-risk signals for synthetic identity detection.
No. The check sends an RCPT TO probe without completing the SMTP transaction — no message is ever delivered. Many large providers (Google, Microsoft) block SMTP probing; in those cases we return an 'unverifiable' verdict rather than an error.
250+ countries via libphonenumber-js, Google's open-source phone number library. Carrier data is built into the library — zero API cost for format validation and line-type classification.