Bounce Protect
Clean your email lists before you send
Know why your list fails — before you send
Bounce Protect gives every email a deliverability score, spam risk score, and send recommendation — plus company intelligence from 22M+ verified organizations. Know the email, know the company, know whether to send.
No credit card required · 100 free validations on signup
Example output — see what we detect
sarah@acmecorp.com
MX records found · SPF + DMARC configured
hello@tempmail.io
Throwaway email provider — score: 5
sales@gmial.com
Possible domain typo detected
info@newstartup.io
Domain registered < 90 days · Spam risk: 35
sarah@shopify.com
Verified company · Founded 2006 · Canada
Try it live below ↓
Check an email instantly
Validate a single email address and see every risk signal detected.
Validation limit
Create a free account to validate more emails.
Integrations
Works with the tools your team already uses
Validate lists before syncing records to your CRM, enrichment workflows, or campaign platform.
Why Bounce Protect
Other tools give you a score. We give you the reason.
A score tells you something is wrong. An explanation tells you what to do about it.
Other validators
You know something is wrong. You don't know what.
Bounce Protect
You know exactly what is wrong. And what to do about it.
Features
Built for teams that care about deliverability
Multi-signal risk engine
Every email gets a full breakdown — disposable domain, role account, catch-all server, new domain, SPF/DMARC missing. Not just a score. Every reason, explained in plain English.
Spam filter risk score
A 0–100 score that tells you how likely your emails are to hit spam filters — not just whether they'll bounce. Factors in SPF, DMARC, domain age, and provider signals.
Domain intelligence
MX provider detection, catch-all confidence scoring, domain age, parked domain detection, and SPF/DMARC authentication checks — all per domain, not just per email.
Send recommendation
Every email gets an actionable verdict: SEND, SEND WITH CAUTION, REVIEW, or DO NOT SEND. No interpretation required — just act on it.
Domain typo correction
Catches gmial.com, yaho.com, hotmai.com and dozens more. Suggests the correct domain so you can fix lists before they bounce, including cross-referencing against other domains in your list.
Company intelligence
Match any business email to company name, industry, employee count, and LinkedIn profile — backed by 22 million+ verified companies across 100+ countries.
Enriched CSV export + API
Export with status, risk signals, deliverability score, spam score, send recommendation, and domain corrections. Or integrate directly via REST API with PHP, Node.js, and Python examples.