How a B2B SaaS Startup Slashed Their Bounce Rate by 94%
How a fast-growing B2B SaaS platform cleaned 85,000 subscriber contacts, restored sender reputation across Google and Outlook, and saved their marketing campaigns.
🚀 #1 Deliverability & Email List Hygiene Engine
4.9/5 on Trustpilot
4.9/5 on G2 Crowd
The Most Accurate Email Verification & Bulk Email List Cleaning Service
Protect your sender reputation and eliminate hard bounces with our enterprise-grade bulk email verifier and email list validation engine. Deploy reliable list scrubbing services with credits that never expire.
< 0.2% Bounce Rate
• ISP Safe
99%+ Accuracy
• Deep SMTP
Credits Never Expire
• PAYG & Subs
Awesome Support
• Responsive
1.9 Billion+
Emails Verified
720 Million+
Bounces Prevented
10,000+
Global Senders
Valid Forever
Pay-As-You-Go Credits
Trusted by 10,000+ High-Growth Teams, Global Enterprises & Leading Platforms
The Bouncify Advantage
Best Email List Validation & Cleaning Service
Empower your campaigns with online email list cleaning, high-speed bulk email verification, and enterprise email list hygiene services.
Data Security is Our Priority
Cloud-hosted SaaS platform engineered for reliable scale and strict data confidentiality.
Privacy & Data Governance:
- 100% GDPR, UK GDPR & CCPA compliant
- We never share, sell, or rent your email data
- Delete your lists anytime with 30-day auto-purge
- Zero emails ever sent to your recipients
- Bank-grade data encryption at all times
- Built with care by deliverability engineers
Bank-Grade Security
Email List Validation
Multi-stage email list validation ensures 99%+ deliverability accuracy.
Bulk Email Verification
High-throughput bulk email verification engine processes millions of emails rapidly.
List Scrubbing Service
Pay only for what you verify. Non-expiring list scrubbing service credits.
Email Verification API
Connect directly to our sub-100ms REST API to verify emails in real time.
Bulk Email Verifier
Reliable bulk email verifier built on distributed cloud infrastructure.
Email List Hygiene Services
Trusted email list hygiene services protecting sender scores worldwide.
Simple Workflow
Clean Email Lists in 3 Simple Steps
No complex configuration. Upload your database to run automated email list verification and clean email list contacts at enterprise speed.
Trade Corp IND (106723).csv
Feb 04
ANALYSIS
RESULT
Emails
106,018
- Deliverable 87,967 82.98%
- Undeliverable 6,491 6.12%
- Catch-all 8,725 8.23%
- Unknown 2,835 2.67%
Verified
100%
cle.csv
Mar 20
ANALYSIS
RESULT
Emails
5,820
- Deliverable 4,248 73.00%
- Undeliverable 640 11.00%
- Catch-all 698 12.00%
- Unknown 234 4.00%
Issues Detected:
- • Disposable 58 1.00%
- • Role Account 174 3.00%
- • Syntax Error 14 0.24%
Analyzed
Free Preview
-
Step 1
Upload Your Contact List
Drop your CSV file or copy-paste contacts into our bulk email verifier dashboard, or import directly from HubSpot, Mailchimp, or Google Sheets.
-
Step 2
Automated Email List Verification
Our engine executes deep email list verification including DNS health, SMTP handshakes, spam trap analysis, disposable detection, and anti-greylisting.
-
Step 3
Download Clean, Verified Contacts
Export pristine, deliverable leads ready for sending. Achieve industry-leading delivery accuracy with complete email list hygiene services.
Precision Protocols
Comprehensive 9-Point Deliverability Engine
Every email is inspected by nine automated validation layers before being certified as safe to send.
Instant Free Deduplication
Removes duplicate addresses automatically across uploaded lists, preventing wasted verification credits and duplicate sends.
RFC Syntax & Typo Check
Identifies malformed email syntax according to RFC 5322 specifications and catches misplaced characters and typos.
Domain & MX Verification
Validates live DNS records and confirms that destination mail exchange (MX) servers are operational and routable.
Deep SMTP Handshake
Simulates real mail delivery directly with the destination server to confirm mailbox existence without sending a message.
Spam Trap & Honeypot Removal
Identifies and neutralizes honeypots and dormant spam traps that inflict damage on your IP reputation.
Disposable Email Filter
Detects and eliminates burner addresses from 3,000+ temporary inbox providers like Mailinator, 10MinuteMail, and GuerrillaMail.
Catch-All Server Detection
Flags domains configured to accept all incoming mail, protecting you from unpredictable downstream bounce spikes.
Anti-Greylisting Technology
Smart retries overcome mail server greylisting delays, converting frustrating 'Unknown' statuses into definitive answers.
Free List Quality Report
Provides a comprehensive health summary of your uploaded list before deducting credits, giving full visibility into data hygiene.
Developer First
Sub-100ms Real-Time Email Validation API
Keep fake, disposable, and invalid emails out of your database right at point-of-capture. Our high-throughput REST API integrates in minutes with simple, predictable JSON payloads.
- Drop-in code samples for cURL, Node.js, Python, and PHP
- Synchronous request-response model with ultra-low latency
- 99.99% enterprise cloud uptime SLA
- Unified credit pool shared across bulk lists and API requests
api.bouncify.io/v1/verify
200 OK • 76ms
$ curl
-X GET 'https://api.bouncify.io/v1/verify?apikey={KEY}&email=alex@company.com'
{
"success": true,
"result": "deliverable",
"score": 98,
"email": "alex@company.com",
"user": "alex",
"domain": "company.com",
"accept_all": false,
"role": false,
"disposable": false,
"free_email": false,
"dns": {
"valid_mx": true
}
}Testimonial
What They Say About Us
Discover how growth marketers, agencies, and data vendors around the world protect sender scores and deliverability with Bouncify.
Confidence in Bulk Sending Without Hard Bounces
Terrific app! I did not expect it to be this easy and simple to clean lists. Using a cleaned list makes me feel confident in sending bulk emails without hurting our clients' domain reputations.
Saved Thousands That Would Be Spent on Penalties
We cleaned all our stale mailing lists and this has helped our clients save thousands that would have been spent on hard bounces. The verification accuracy is consistently above 99%.
Achieved a Record Low Bounce Rate of 0.1%
Achieved a low bounce rate of 0.1%, which is not possible without your list validation tool. Will definitely recommend Bouncify to all my email marketing clients worldwide.
Seamless API Integration & High Throughput
Integrating Bouncify's real-time verification API into our user registration flow took less than an hour. It immediately stopped fake signups and disposable emails from polluting our customer database.
Protected Our Reputation Across 500k Contacts
With Bouncify's anti-greylisting and deep MX verification, our deliverability jumped from 89% to over 99.2%. It has saved our high-volume seasonal email campaigns from spam folders.
Got Questions?
Frequently Asked Questions
Everything you need to know about Bouncify's email verification service, flexible plans, and deliverability engine.
Bouncify delivers 99%+ deliverability accuracy. Our 9-stage verification
engine performs multi-layered checks including RFC syntax compliance, domain
and MX verification, deep SMTP mail server handshakes, spam trap detection,
and anti-greylisting retry technology without sending an actual email.
No! Pay-as-you-go verification credits are valid forever and never expire.
They remain in your account indefinitely until used. Whether you verify a
small batch today or run a large campaign months later, your credits are
always ready.
Yes! You can hold both an active monthly subscription and a Pay-As-You-Go
credit balance at the same time. Bouncify automatically utilizes your
monthly subscription credits first, preserving and protecting your
never-expiring PAYG credits for future use.
Unlike services that immediately mark temporary mail server delays as
'Unknown', Bouncify uses smart anti-greylisting retry algorithms to re-query
hesitant mail servers, dramatically reducing unknown rates and saving you
verification credits.
Yes. Bouncify maintains a unified credit pool across your account. You can
upload bulk CSV files in your web dashboard and execute real-time single
email verification API requests using the exact same credit balance.
Yes! When you register a free account, you receive 100 free verification
credits immediately. No credit card or billing details are required. You can
test bulk list uploads, single verification, or API integration.
Absolutely. You maintain complete control over your contact records. You can
delete uploaded lists, verification results, and reports anytime with a
single click from your dashboard. In addition, our automated system
permanently purges list records after 30 days. We never share or resell your
data.
We support USD, EUR, and INR for global and regional convenience. Invoices
are generated automatically for every purchase, complete with necessary
corporate tax details.
Blog
Our Latest News and Update
Latest email deliverability guides, engineering deep dives, and case studies from the Bouncify team.
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Deliverability Team
March 5, 2026Let's Try! 100 Free Credits
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