Verify email addresses before you send. Our 5-stage pipeline checks syntax, domain, SMTP, social signals, and AI scoring to tell you exactly which emails are safe to send to.
Joined by 2,400+ email teams
100 free credits every month. Plans from $5/1,000 emails. No subscription required.
"Strong authentication and confirmed SMTP mailbox. Domain is 8 years old with active social presence — high confidence deliverable."
Batch list cleaners, real-time webhook handlers, and CMS plugins for every major ESP, CRM, newsletter platform, and eCommerce stack.
Email Service Providers
CRM & Lifecycle
Newsletter Platforms
CMS & eCommerce
Free & open source · Python · WordPress · Shopify · WooCommerce · Docker · Zapier · Make · n8n
Type any email address and run a real 5-stage verification right now — no account needed.
Get full access to all 40+ fields, bulk verification, and the complete API.
Start Free — 100 CreditsWatch how BounceZero validates emails in real-time and protects your sender reputation.
Every email passes through five layers of deep analysis. Each stage adds intelligence that basic validators simply don't have.
Deep structural validation far beyond simple regex. We analyze the actual composition of the email address to detect anomalies invisible to basic validators.
We don't just check if a domain has MX records. We build a complete intelligence profile of the mail infrastructure, authentication policies, and domain reputation.
Our SMTP engine doesn't just ping the server. It uses multiple verification strategies, handles greylisting automatically, and employs a 3-probe technique to accurately detect catch-all domains.
Real people leave digital traces. We cross-reference the email against multiple social and identity signals to determine if a real human is behind the address.
The final stage enriches the verification with advanced intelligence signals that only a purpose-built platform can provide. This is where BounceZero separates from every other service.
Every verification signal feeds into our dual scoring engine. Unlike services that return a simple "valid/invalid", BounceZero calculates a precise probability score from 0-100 using 40+ weighted signals.
Each signal contributes a mathematically weighted likelihood ratio. Signals that matter more weigh more.
ML models trained on real verification data blend with Bayesian priors for maximum accuracy.
Signal freshness matters. Older data points decay in weight automatically to keep scores current.
Get a human-readable explanation of exactly why each email scored the way it did. No black boxes.
"This email is highly likely to be deliverable. The domain has strong authentication (SPF+DKIM+DMARC), the mailbox was confirmed via SMTP, and a social profile exists, indicating a real user."
Built for teams who need more than just "valid" or "invalid". Every feature below comes with every verification.
Detects temporary email services like Guerrilla Mail, Mailinator, and hundreds of others. Block fake signups before they happen.
SPF, DKIM, DMARC, BIMI, MTA-STS, and DANE records analyzed in one pass. Know exactly how well a domain protects its email.
When servers temporarily reject (greylisting), we automatically retry. Other services report these as "unknown" — we get the real answer.
We send three strategic probes (known-good, random, target) to accurately determine if a domain accepts all emails or just valid ones.
Cross-references against Gravatar, developer platforms, and breach databases. Real people leave digital traces — we find them.
ML-powered detection of potential spamtrap addresses. Sending to spamtraps destroys your sender reputation — we catch them first.
WHOIS lookups reveal domain age, registration dates, and history. New domains are high-risk. We factor this into every score.
Upload lists of millions. Our concurrent pipeline processes them with full 5-stage verification for every single email. Export clean results as CSV.
Full API access with 30+ endpoints. Single verification, bulk jobs, domain intelligence, webhooks, and list analysis. Integrate anywhere.
Most email verification services stop at the basics. Here's what you're missing when you use a typical provider.
| Feature | Other Services | BounceZero |
|---|---|---|
| Syntax Check | ||
| MX Lookup | ||
| SMTP Verification | ||
| Disposable Email Detection | ||
| Role-Based Detection | ||
| Catch-All Detection | ||
| Spamtrap Detection | ||
| Greylisting Auto-Retry | Some | |
| Basic AI / ML Scoring | Some | |
| Per-Email SPF / DKIM / DMARC | ||
| BIMI / MTA-STS / DANE | ||
| Domain Age & Full WHOIS | Basic | |
| Social Profile Detection | ||
| Breach Database Cross-Ref | ||
| Homograph / Punycode Detection | ||
| Bayesian + ML Blended Scoring | ||
| AI-Powered Explanations | ||
| Certificate Transparency Logs | ||
| Domain Intelligence API |
Based on publicly documented features of leading email verification providers as of 2026.
Adjust the sliders to see your real cost of unverified email lists and your exact ROI with BounceZero.
Bad Addresses in List
800
Monthly Sending Waste
$32.00
Annual Savings with BounceZero
$384
Verification Cost
$75
Professional plan
Your ROI
5x
return on investment
* Estimates based on industry average deliverability improvements. Your results may vary.
Integrate BounceZero into your stack in minutes. Full REST API with 30+ endpoints covering single verification, bulk processing, domain intelligence, and webhook notifications.
All API traffic over TLS. Email addresses encrypted in transit and at rest. Your data stays secure.
Email lists are deleted after processing. We don't store, sell, or share your data. Ever.
Fully compliant with GDPR and international data protection regulations. Your privacy is our priority.
From solo developers to enterprise marketing teams — real results from real users.
"We cleaned a 120k list before our Black Friday campaign. Bounce rate dropped from 9.2% to 0.8% overnight. The catch-all 3-probe detection alone saved us from getting our domain blacklisted."
Marcus T.
Email Marketing Manager, ShopNest
"I use BounceZero at signup to block disposable and fake emails. Our free-to-paid conversion went up 18% because we're only nurturing real users now. The API integration took me under 30 minutes."
Priya S.
Founder, Clarifio SaaS
"The social profile detection and AI-powered explanations are in a different league. We use the digital footprint data to score leads — contacts with a GitHub and LinkedIn profile convert 3x better."
Daniel R.
Head of Growth, Nexara B2B
"Switched from a major competitor after they couldn't handle our catch-all domains properly. BounceZero's triple-probe approach gives us actual confidence levels, not just a binary pass/fail."
Sofia K.
CTO, DigitalWave Agency
"As a deliverability consultant, I've tested every major verifier. BounceZero is the only one that exposes SPF/DKIM/DMARC per-email AND checks Certificate Transparency logs. It's built by people who actually understand email."
James L.
Independent Email Deliverability Consultant
"We run quarterly re-engagement campaigns to 200k+ contacts. The Bayesian scoring with temporal decay is exactly what we needed — addresses that haven't shown activity in months get weighted correctly. No other tool does this."
Aisha K.
Director of Marketing, VeraFin Group
1 credit = 1 email verification. Every credit includes our full 5-stage pipeline. No feature gating. Credits never expire.
100 free credits every month. No credit card required.
Quick answers to common questions. Full FAQ on the pricing page →
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Join 2,400+ teams who've already cleaned their lists, protected their sender reputation, and boosted deliverability with BounceZero.
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