Validate email addresses without sending.
Proweblook Email Checker is an API and web tool for verifying email addresses without sending an email to them. It performs syntax/format validation, domain and MX record lookups, SMTP handshake verification to confirm a mailbox exists, and disposable email detection against a list of over 10,000 known temporary email providers. Results are returned as a JSON response indicating validity, format correctness, disposable status, MX record presence, and SMTP verification.
The service supports both real-time single-address checks, intended for form validation workflows, and bulk verification for uploading and cleaning mailing lists. It is offered as part of a broader API platform (ProWebLook) that also includes phone validation, IP geolocation, and other identity and web intelligence tools, and is aimed at developers who need to validate email addresses programmatically or in bulk.
It runs format/syntax validation, domain existence check, MX record lookup, SMTP handshake verification, and disposable email detection, all without sending an actual email.
Yes, you can upload and verify thousands of emails at once to clean mailing lists and boost deliverability.
Yes, there is a free email verifier tool on the site that lets you check an email's validity instantly with no credit card required.
Pricing is credit-based with options for one-time credits, monthly, or annual billing (20% off), checked out via Stripe or PayPal.
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