Free tool · Free API

Disposable email checker

Paste one email or up to 100. Get back which are disposable (Mailinator, Guerrilla Mail, etc.) and which match bot-style randomness patterns.

Free public API

Embed disposable-email checking in your own app or workflow. CORS-enabled, no auth, rate-limited at 100 calls per IP per hour.

Single email (GET)

curl 'https://www.doormanapp.com/api/v1/email/check?email=foo@mailinator.com'

{"ok": true, "email": "foo@mailinator.com", "valid": true, "disposable": true, "reason": "domain"}

Bulk (POST, up to 100)

curl -X POST 'https://www.doormanapp.com/api/v1/email/check' \
  -H 'content-type: application/json' \
  -d '{"emails": ["foo@mailinator.com", "jason@gmail.com"]}'

{"ok": true, "results": [
  {"email": "foo@mailinator.com", "valid": true, "disposable": true, "reason": "domain"},
  {"email": "jason@gmail.com", "valid": true, "disposable": false, "reason": null}
]}