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Email validation is the filter before sending: like checking the address on an envelope before mailing a letter — it avoids bounces, dirty lists, and credits spent on destinations that don’t exist. Use the dashboard under Add-ons → Email validation or integrate at signup in your system.

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What is it?

It’s an add-on that answers a simple question: is this email deliverable? You send a list (up to 10 in the dashboard or sync API, up to 10,000 in batch) and get, for each address, whether it passed or not — with the reason when it fails.

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Why use it?

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Two verification modes

Use quick to clean large lists at low cost. Use full when delivery depends on the address being real (e.g. before OTP or critical transactional).

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Dashboard vs API

In the dashboard: paste emails (one per line or comma-separated), choose Quick or Full, and see results on the right — approved, rejected, risky, or unknown.

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What each status means

Useful fields in the response: disposable (temporary email), mx_found (domain accepts email), catch_all, suggested_spelling (suggested correction), credits_charged.

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API Key scope

Email routes require validations:email — separate from email:send (sending messages).

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Also available: phone validation and CPF lookup

Need to check numbers and WhatsApp before sending? See Phone validation. For Brazilian document signups, use CPF lookup.

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Next steps