Local Software • Unlimited Verification • 99.99% Accuracy
Professional Email Verification Service
Verify Millions of Gmail Accounts {{On Your Local Server }} After months of testing and development, we've created the ultimate Gmail verification solution that runs directly on your computer. No expensive subscriptions, no limitations, no port 25 restrictions. Just unlimited verification at 99.99% accuracy. One-time payment, lifetime access.
SYSTEM COMPATIBILITY
Bounce Checker currently runs on Windows 10/11 (64-bit) only.
macOS and Linux versions are in active development.
Four Key Metrics
Powerful Email Verification Features
Discover the core pillars of Bounce Checker – unmatched accuracy, unlimited verification capacity, zero recurring costs, and lifetime ownership with a single purchase.
99.9%
Accuracy Rate
∞
Unlimited Checks
$0
Monthly Fees
1x
One-Time Payment
The Real Problem with Online Email Verification Services
Why unlimited Gmail email verification is either impossibly expensive or simply impossible with cloud-based solutions
If you’ve ever tried to verify Gmail addresses at scale, you know the frustration. Online email validator services charge astronomical fees for unlimited verification – we’re talking thousands of dollars per month. Even then, many impose hidden limits or throttle your requests.
Here’s the truth nobody tells you: Most email verification services can’t offer truly unlimited Gmail email checker capabilities because every hosting provider strictly controls Port 25 usage. Port 25 is essential for SMTP verification – it’s how you check if an email account actually exists and prevent email bounce issues before they occur.
We originally wanted to host individual instances for each customer on their own domain. Sounds perfect, right? Each client gets their own dedicated email verification server.
However, we quickly hit a wall. Hosting providers simply won’t allow aggressive Port 25 usage. They block it, throttle it, or charge premium prices for it.
The Four Major Problems with Cloud-Based Services
This is why cloud-based Gmail email validation at scale is:
- Prohibitively expensive – Email validator services charge $500-$5000+/month for “unlimited” plans
- Actually limited – Fine print reveals caps, throttling, and usage restrictions on email verification
- Unreliable – Port 25 blocks mean inconsistent email checker results and frequent downtime
- Not truly scalable – Try verifying millions of emails and watch email bounce prevention costs explode
After months of testing different channels, methods, and solutions, we discovered the ONLY way to achieve true unlimited Gmail verification at 99.99% accuracy: Run it on your local server.
Your local machine doesn’t have the Port 25 restrictions that hosting providers impose on email validator services. As a result, you control your own infrastructure completely. Furthermore, you set your own limits – which means no limits at all for email bounce prevention. This is why Bounce Checker was born as a local application, not another expensive SaaS email checker.
Our Solution: Local Server = Unlimited Power
Why Bounce Checker runs on your computer and why that's the only way to achieve true unlimited verification
Runs on Your Local Server
Install Bounce Checker directly on your computer or local server. No dependency on expensive hosting providers. No Port 25 restrictions. Complete control over your verification infrastructure.
Truly Unlimited Verification
Verify 1 million Gmail addresses per month? 10 million? 100 million? There are no limits. No throttling. No overage charges. Pay once, verify forever - as many emails as you need.
One-Time Payment Only
Forget monthly subscriptions that drain your budget. Pay once for Bounce Checker and own it forever. No recurring fees, no surprise charges, no pricing tiers. Just unlimited verification for life.
99.99% Accuracy on Gmail
We focused exclusively on Gmail to perfect our technology. After months of testing, we've achieved 99.99% accuracy - the highest in the industry. One provider, done right, rather than many providers done poorly.
Fast & Efficient
Running locally means zero network latency from cloud servers. Your verification runs at maximum speed, limited only by your machine's resources - which you can upgrade anytime.
Complete Data Privacy
Your email lists never leave your computer. No uploading sensitive data to third-party servers. No privacy concerns. Total control and security of your valuable contact lists.
Why Only Gmail?
Our commitment to quality over quantity – and why that benefits you
You might be wondering: "Why focus primarily on Gmail for email verification? What about Yahoo, Outlook, and other providers?"
Here’s our philosophy: We refuse to treat our users like idiots. We won’t sell you a “universal email validator” that gives mediocre results across all providers. Instead, we’ve seen too many competitors do this – claiming their email checker works everywhere while actually verifying nothing well.
Therefore, we made a strategic choice: Perfect one thing rather than do everything poorly.
Gmail represents over 1.8 billion active users worldwide. Furthermore, it’s the dominant email provider for both businesses and consumers. By focusing our email verification technology on Gmail first, we’ve been able to achieve remarkable results.
This is our promise and our reputation. We're proud to say we've created the ultimate solution for Gmail email bounce checking with 99.99% precision
Something everyone wants but few can deliver. Moreover, when you use our email verification tool, you’re getting an email checker that does one thing better than anyone else, not a jack-of-all-trades that disappoints across the board.
If you need to verify other providers, there are plenty of mediocre tools out there. However, if you need to verify Gmail addresses with absolute confidence and unlimited volume using our professional email validator, you’re in exactly the right place. Therefore, our specialized email verification approach eliminates email bounce issues more effectively than any general-purpose solution available today.
Everything You Need in One Application
Powerful features designed for serious email marketers who verify at scale
Bulk Verification
Upload CSV files with millions of Gmail addresses. Process them all without limits. Export clean, validated lists ready for your campaigns.
Detailed Reports
Get comprehensive status for each email: Valid, Invalid, Catch-All, Temporary, Risky, Syntax Error. Make informed decisions about your lists.
Easy Installation
Complete documentation and video tutorial included. No coding knowledge required. Install in minutes, start verifying immediately.
Local Data Storage
All verification happens on your machine. Your email lists stay private and secure. No data sent to external servers ever.
Complete Privacy
Your email lists never leave your computer. Zero data uploads, zero third-party. Maintain complete confidentiality of your valuable contact databases.
Dedicated Support
Technical support when you need it. Installation help, troubleshooting, and optimization guidance to get the most from your software.
How it works
Simple Installation Process
Get up and running in minutes - no technical expertise required
Download
Download Bounce Checker installer and complete documentation. All you need in one package.
Install
Follow our step-by-step video tutorial. Simple installation wizard guides you through the process.
Configure
Basic configuration takes 2 minutes. Detailed documentation available for advanced settings.
Verify
Start verifying immediately. Upload your first list and watch Bounce Checker work its magic.
99.99% Accurate
Clean Your Gmail Lists and Maximize Campaign Results
Stop wasting money sending emails to invalid Gmail addresses. Bounce Checker verifies every address with precision, eliminating bounces and protecting your sender reputation.
- SMTP handshake verification
- MX record validation
- Domain existence checks
- Syntax and format analysis
- Disposable email filtering
- Catch-all detection
Improve Conversions
Cloud vs Desktop
An objective comparison between cloud-based verification services and desktop software. Each approach has its own strengths depending on your needs.
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Cloud Services
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Bounce Checker
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Pricing Model
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Monthly Subscription
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One-Time Payment
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Installation Required
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Port 25 Required
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Data Storage
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Cloud Servers
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Your Computer
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Usage Limits
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Monthly Caps
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Unlimited
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Internet Connection
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Verification Accuracy
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99.99%
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Bulk Processing
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Data Privacy
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Shared with Provider
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100% Local
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Ongoing Costs
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Recurring Fees
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None
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Updates & Support
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Easy Setup
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Requires Installation
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Technical Specifications
Performance Metrics
Identify bottlenecks in your conversion funnels with precision. Our app analyzes every step, empowering you to optimize the customer journey and maximize sales effortlessly.
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Real-time tracking Monitor activities and conversions instantly.
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Performance analytics Identify top performers, and optimize.
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Payout automation Seamless and timely transactions.
Stop Overpaying
Seize the opportunity - unlimited verification
Experience the freedom of unlimited Gmail verification, the power of 99.99% accuracy, and the impact of zero monthly fees. Your cost savings begin now!
Flexible Pricing
One Price. Unlimited Verification. Forever.
Pay once, own forever. No subscriptions, no limits, no games.
Frequently Asked Questions
Any doubts? We're here to help
Everything you need to know about Bounce Checker
After months of testing, we discovered that cloud-based unlimited Gmail verification is either prohibitively expensive or simply impossible due to Port 25 restrictions imposed by hosting providers. Port 25 is essential for SMTP verification, and most hosts strictly limit or block its usage to prevent spam. By running Bounce Checker on your local server, you bypass these restrictions entirely, giving you true unlimited verification without the costs and limitations of cloud services. This is the ONLY way to achieve genuine unlimited Gmail verification at scale.
Unlimited. Literally. Want to verify 1 million Gmail addresses? Do it. 10 million? Go ahead. 100 million? If your server can handle it, so can Bounce Checker. There are no artificial limits, throttling, or caps. The only limitation is your own hardware resources, which you can upgrade anytime. This is why running locally is so powerful - you control the infrastructure, you control the limits.
Your email lists never leave your computer. All verification happens locally on your machine. We don't store, upload, or transmit your email lists anywhere. This is a major advantage of running Bounce Checker locally - complete data privacy and security. Your valuable contact lists remain under your control at all times. No third-party access, no cloud storage, no privacy concerns.
Bounce Checker currently supports:
✅ Windows 10 (64-bit)
✅ Windows 11 (64-bit)
🚧 macOS (in development - Q2 2025)
🚧 Linux (in development - Q2 2025)
Minimum system requirements:
4GB RAM (8GB recommended)
500MB available disk space
Internet connection for verification
We launched on Windows first because:
Majority of our target users (80%+) are on Windows
Faster development - focus on one platform ensures quality
Testing and optimization - perfecting the Windows experience before expanding
We're now confident in the Windows version and actively developing for macOS and Linux.
We refuse to be another mediocre "verify everything" tool that disappoints users. We've seen too many competitors claim to verify all providers while delivering poor results everywhere. Our philosophy: perfect one thing rather than do everything poorly. Gmail represents 1.8+ billion users and is the dominant email provider. By focusing exclusively on Gmail, we've achieved 99.99% accuracy - something impossible when spreading resources across multiple providers. If you need Gmail verification done right, we're the best. If you need other providers, there are plenty of mediocre tools available.
No. Because Bounce Checker is a downloadable digital service, all sales are final and we do not offer refunds once the software has been downloaded. To help you make a confident decision, we recommend carefully reviewing the system requirements before purchasing and reaching out to our support team with any pre-purchase questions. We’re happy to assist and ensure the software is the right fit for your needs.
Yes! Several Mac users successfully run Bounce Checker using:
Option 1: Parallels Desktop (Recommended)
Install Windows 10/11 virtual machine
Run Bounce Checker inside Windows VM
Performance: 90-95% of native
Cost: $99/year for Parallels
Option 2: Boot Camp (Free, Intel Macs only)
Dual-boot Windows natively
Full native performance
Requires reboot to switch OS
Free (just need Windows license)
Option 3: VMware Fusion
Similar to Parallels
Cost: $199 one-time or $79/year
Note: Apple Silicon (M1/M2/M3) Macs can only use Parallels, not Boot Camp.
Trusted by Professionals
Join thousands of email marketing
Join email marketing professionals and agencies who chose unlimited verification. See why industry leaders trust Bounce Checker for their Gmail validation needs.
Customer Testimonials
We love our users and they love us
The best way to showcase our commitment is through the experiences and stories of those who have partnered with us.
After wasting $3,200/month on cloud verification services with hidden limits, Bounce Checker was a revelation. Unlimited Gmail verification for a one-time payment? I was skeptical, but it delivers exactly as promised. Already verified 5.2 million emails in the first month alone. The ROI is insane - paid for itself in 6 days.
Ahmed Rahman
Email Marketing Director
Dubai, UAE
The 99.99% accuracy claim isn't marketing hype - it's real. We compared Bounce Checker against our previous provider on 100,000 emails. Bounce Checker caught 847 invalid addresses they missed, saving our sender reputation and thousands in wasted sends. Game changer for our agency.
Priya Reddy
Growth Marketing Manager
Bangalore, India
Installing local software worried me, but the video tutorial made it effortless. Up and running in 18 minutes. Now we verify 2 million Gmail addresses monthly without thinking about costs or limits. Best ROI decision we've made this year. No more $500 monthly bills eating our margins.
David Thompson
CTO & Co-Founder
London, UK
We switched from a $499/month service to Bounce Checker. Paid for itself in the first month. Six months later, we've saved $2,994 and verified more emails than we ever could afford before. Finally, truly unlimited verification without the anxiety of hitting caps or getting throttled.
Fatima Hassan
E-commerce Operations Manager
Cairo, Egypt
I was paying $2,400/year for "unlimited" verification that throttled after 500k emails. Bounce Checker's one-time $597 eliminated that frustration forever. Clean lists, protected reputation, zero recurring costs. Exactly what email marketers need - no games, no limits, just results.
Raj Sharma
Digital Marketing Consultant
Mumbai, India
Bounce Checker paid for itself in one month. No more $500 monthly bills, no verification limits. Just unlimited Gmail validation at 99.99% accuracy. Our campaigns improved, sender reputation protected, and our CFO finally stopped questioning email marketing costs. Win across the board.
Marcus Stevens
Marketing Director
Toronto, Canada
eCommerce Success
Stop Paying Monthly. Start Verifying Unlimited.
Join the email marketers who've switched from expensive cloud services to unlimited local verification. One payment. Lifetime access. Unlimited Gmail verification forever.
• Lifetime updates included • Technical support available •
Disclaimer
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