Client-side regex catches typos, not throwaway inboxes. By the time a fake [email protected] is in your DB, your activation rate and sender reputation already took the hit.
This API does three checks in one request: RFC-5322 syntax, a live MX lookup (does the domain actually accept mail?), and a disposable/role-based check (info@, admin@, temp-mail domains). It also suggests fixes for obvious typos like gmail.con.
curl --request GET
--url 'https://email-validation-api37.p.rapidapi.com/api/v1/[email protected]'
--header 'x-rapidapi-key: YOUR_RAPIDAPI_KEY'
--header 'x-rapidapi-host: email-validation-api37.p.rapidapi.com'
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You get back validity, MX status, disposable/role_based flags, and a did_you_mean suggestion. There’s a batch endpoint (POST /api/v1/validate) for cleaning an existing list.
Free tier on RapidAPI: https://rapidapi.com/danieligel/api/email-validation-api37
Built this to gate signups on a side project. Curious what your stack currently does for MX checks — happy to compare notes.
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