Verify emails that
5-stage pipeline. 40+ signals. Real-time API and bulk processing. Built for teams that can't afford bounces.
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Your Stack, Already Covered
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
See It In Action
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 CreditsSee BounceZero in Action
Watch how BounceZero validates emails in real-time and protects your sender reputation.
The 5-Stage Verification Pipeline
Every email passes through five layers of deep analysis. Each stage adds intelligence that basic validators simply don't have.
Syntax & Local Part Analysis
10+ ChecksDeep structural validation far beyond simple regex. We analyze the actual composition of the email address to detect anomalies invisible to basic validators.
Domain Intelligence
11+ DNS LookupsWe 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.
SMTP Deep Verification
AdvancedOur 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.
Social & Digital Footprint
OSINTReal 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.
Intelligence Enrichment
Deep IntelThe 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.
Bayesian + ML Scoring Engine
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.
Bayesian Likelihood Ratios
Each signal contributes a mathematically weighted likelihood ratio. Signals that matter more weigh more.
Machine Learning Blend
ML models trained on real verification data blend with Bayesian priors for maximum accuracy.
Temporal Decay
Signal freshness matters. Older data points decay in weight automatically to keep scores current.
AI-Powered Explanations
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."
Everything You Get
Built for teams who need more than just "valid" or "invalid". Every feature below comes with every verification.
Enterprise-grade security you can verify
Every email your team sends passes through infrastructure that meets cloud security standards trusted by Fortune 500 procurement teams. Independently assessed, publicly verifiable.
Cloud Security Alliance self-assessment covering 261 controls across 17 security domains. Publicly listed in the CSA STAR Registry.
All 8 sender compliance checks passing — domain reputation, SPF, DKIM, DMARC, spam rate, and delivery errors all green.
All 6 SMTP probe IPs registered with Microsoft's Smart Network Data Services. IP reputation monitored and clean across Outlook and Hotmail infrastructure.
BounceZero Ltd is a registered company in England and Wales (No. 17153835), subject to UK corporate law, HMRC oversight, and Companies House filing requirements.
BounceZero vs. ZeroBounce vs. NeverBounce
ZeroBounce charges $19.50/1K. NeverBounce retroactively expired your credits. BounceZero gives you more features at $3.00/1K — and your credits never expire.
| 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.
NeverBounce expired your credits. We won't.
After ZoomInfo acquired NeverBounce, they retroactively added 12-month expiry to credits sold as "never expiring." BounceZero credits never expire — period.
See full comparison →6× cheaper. Same 5-stage verification pipeline.
ZeroBounce charges $19.50/1,000 emails at entry level. BounceZero charges $3.00/1,000 — with SPF/DKIM/DMARC, AI scoring, and catch-all detection included.
See full comparison →How Much Are Bad Emails Costing You?
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.
Developer-First API
Integrate BounceZero into your stack in minutes. Full REST API with 30+ endpoints covering single verification, bulk processing, domain intelligence, and webhook notifications.
Encrypted End-to-End
All API traffic over TLS. Email addresses encrypted in transit and at rest. Your data stays secure.
No Data Retention
Email lists are deleted after processing. We don't store, sell, or share your data. Ever.
GDPR Compliant
Fully compliant with GDPR and international data protection regulations. Your privacy is our priority.
What Our Users Say
From solo developers to enterprise marketing teams — real results from real users.
Simple, Credit-Based Pricing
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.
Frequently Asked Questions
Quick answers to common questions. Full FAQ on the pricing page →
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Email Deliverability Guides
Expert guides on email verification, list hygiene, and improving your sender reputation.
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Contact Us
Have questions? Need a custom plan? We'd love to hear from you.
Get in Touch
admin@bouncezero.io
Phone
+1 (515) 368-9959
+1 (515) 368-9959
Telegram Support
@BounceZeroSupport_bot
Telegram Channel
@BounceZero
We typically respond within 2 hours during business hours. For urgent inquiries, reach us directly via WhatsApp or Telegram for the fastest response.