Product · Bulk validation
Clean your entire list,
in minutes.
Upload a CSV or TXT, sit back, and download a clean list. DebounceAPI removes invalid, disposable, role-based, and duplicate addresses so your campaigns reach real inboxes.
Drop your CSV here
or click to browse — up to 1M emails per upload
What we check on every email
Syntax validation
RFC-compliant syntax checking catches typos and malformed addresses instantly.
Domain & MX records
We confirm the domain exists and has working mail servers.
Disposable detection
Identify 200+ disposable providers (mailinator, tempmail, guerrillamail…).
Role-based addresses
Flag generic inboxes like info@, support@, noreply@ that hurt engagement.
Catch-all detection
Spot domains that accept everything — and decide what to send.
Deduplication
Duplicates removed automatically. You never pay twice for the same email.
Flexible CSV downloads.
Filter exports by status. Send only deliverable contacts to your ESP, or pull every signal for your data team.
- All results (with full signals)
- Only deliverable
- Only invalid (for removal)
- Risky / unknown (for review)
email,status,score,free_email,role,disposable,did_you_mean [email protected],deliverable,92,true,false,false, [email protected],risky,55,false,true,false, [email protected],undeliverable,8,false,false,true, [email protected],undeliverable,12,false,false,false,gmail.com [email protected],deliverable,88,false,false,false,
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