Customer Success Story

How a UK B2B Data Provider Achieved 94% Email Accuracy and Saved £18K Monthly

A UK-based B2B data and marketing intelligence SaaS company serving 10,000+ global clients modernized its email validation workflow using no2bounce's AI-powered platform.
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Stats Cards
94%
Email Accuracy
+18%
72%
Time Saved
20 hrs vs 72 hrs
£18K
Monthly Savings
450% ROI
70%
Bounce Rate
3–5% final rate
📌 TL;DR – Key Results
  • Email accuracy improved from 76% to 94% – reducing invalid emails by 45%
  • Validation time cut by 72% – from 72 hours to just 20 hours
  • £18,000 monthly savings through reduced QA time and support costs
  • ROI achieved in less than 1 month with 450% annual return
About The Client
Location
United Kingdom
Industry
B2B Data & Marketing Intelligence / SaaS
Team Size
51–200 employees
Client Base
10,000+ businesses globally
Database Size
4.7M+ verified email addresses
Compliance
GDPR-certified operations

The Challenge

As a trusted B2B data provider serving thousands of businesses worldwide, maintaining high email data quality standards was critical — but increasingly difficult at scale.

1
Slow Validation Speed
Processing 47M+ emails took 72+ hours, creating bottlenecks and delaying time-sensitive campaigns.
2
Catch-All Email Uncertainty
15% of their database was marked as “unknown” due to catch-all domains, resulting in riskier campaigns and lost confidence.
3
Inconsistent Accuracy
Small validation errors multiplied at scale, increasing spam complaints, bounces, and inboxing issues.
4
Client Deliverability Issues
Client bounce rates rose by 12–15%, damaging sender reputation and increasing support requests by 40%.

“Our clients depend on us for accurate, verified B2B contact data. Every invalid email we provide damages their sender reputation and our credibility. We needed a validation partner that could match our commitment to data quality.”

— Data Quality Manager

The Solution – Why no2bounce

Faster validation, higher accuracy, intelligent catch-all handling, and built-in GDPR compliance—without sacrificing scale.

Bulk Email Validation API

What it does

Rapidly validates millions of email addresses using multi-layer verification.

How it was used

Automated validation of all new and refreshed datasets before delivery.

Impact
Validation time reduced from 72 hours to 20 hours
3.5× faster processing speed

AI-Powered Catch-All Scoring

What it does

Uses ML models to classify catch-all emails as Safe, Risky, or Unknown.

How it was used

Only Safe catch-all emails were included in client datasets.

Impact
30% more deliverable contacts unlocked
Previously unusable data converted into revenue

Multi-Layer Email Verification

What it does

Syntax, DNS, MX, SMTP, mailbox checks, spam trap & role detection.

How it was used

Comprehensive validation of every email in the database.

Impact
Accuracy increased from 76% to 94%
Invalid emails reduced by 75%

Real-Time Single Email Validation

What it does

Provides instant email validation with sub-second response times.

How it was used

Support teams validated individual emails during audits and live client inquiries.

Impact
Support ticket resolution time reduced by 40%

GDPR Compliance Built In

What it does

Ensures all validation workflows comply with EU data protection standards, including full audit trails.

How it was used

Maintained compliance across all UK and EU client operations.

Impact
Zero compliance issues since implementation
Increased trust among UK and EU enterprise clients

Implementation Timeline

Seamless Deployment in Under 30 Days

Week 17 days

Discovery & Planning

Workflow analysis
API customization
Week 27 days

Technical Integration

Bulk & real-time validation enabled
QA testing completed
Weeks 3–414 days

Optimization & Training

Dashboard training
Reporting setup
A/B testing vs previous provider
Month 2+Ongoing

Full Deployment

100% of datasets routed through no2bounce

Client Testimonials

Trusted by leadership teams building modern data products

ho2bounce transformed how we deliver data to our clients. The AI-powered catch-all scoring alone recovered nearly 30% of addresses we previously excluded — campaign results improved immediately.

👤
Founder & CEO

What once took weeks is now done in days. Validation speed, accuracy, and ROI were obvious within the first month of implementation.

👤
Co-Founder & Head of Data Operations

Key Takeaways

Three pillars of success with no2bounce

Speed Meets Accuracy

Enterprise-scale validation with 3.5× faster delivery and consistently precise results.

Catch-All Intelligence

AI-driven scoring unlocks usable data while minimizing risk and uncertainty.

GDPR-Compliant Excellence

Compliance is built into every step, ensuring zero regulatory surprises.

Ready to Boost Your Email Deliverability?

Join 50,000+ fast-growing businesses that trust no2bounce for accurate, secure, and GDPR-compliant email verification.

GDPR Compliant
SOC 2 Certified