Bouncer - The easiest to use, yet the most powerful E-mail Validation and deliverability Service.
Today, Bouncer goes far beyond email verification. From validating email addresses and protecting signup forms to continuously cleaning customer databases and monitoring deliverability, Bouncer helps businesses keep their data accurate and their emails landing in the inbox.
Bouncer is a technological leader in email verification, delivering industry-leading coverage, exceptional accuracy, and high performance. Our platform verifies up to 200,000 email addresses per hour per customer, backed by a zero-downtime policy.
Alongside list and API verification, Bouncer also offers:
• AutoClean – automatically verifies new and updated contacts in connected platforms like HubSpot, Klaviyo, Brevo, and User.com, keeping your database clean without manual work.
• Bouncer Shield – protects online forms in real time by blocking invalid, disposable, malicious, and fraudulent email addresses before they enter your database.
• Toxicity Check – identifies risky email addresses, including spam traps, breached accounts, complainers, litigators, and other potentially harmful contacts.
• Deliverability Kit – helps monitor inbox placement, email authentication, DNS records, blacklists, and overall domain health.
• Integrations with leading CRM, Marketing Automation, Email Marketing, and Sales platforms.
Why choose Bouncer?
Industry-leading accuracy
Our verification engine is built with a strong bias against false negatives, helping you keep legitimate contacts instead of rejecting them unnecessarily.
Best-in-class coverage
Verify email addresses hosted by virtually any provider, including deep catch-all verification for Google Workspace and Microsoft 365, while maintaining one of the industry's lowest unknown rates (typically 0.3–3%).
High performance
Verify up to 200,000 email addresses per hour with generous API rate limits and enterprise-ready infrastructure.
Secure and reliable
Bouncer is GDPR compliant by design, operates from EU-based infrastructure, anonymizes submitted email addresses throughout the verification process, and follows a strict zero-downtime policy.
Powerful, yet simple
Enterprise-grade technology with an intuitive interface that anyone can start using within minutes.
Features
Email Verification
Upload lists of up to 250,000 email addresses or connect through the API to identify valid, invalid, disposable, role-based, and catch-all addresses before sending.
Bounce Estimate
Estimate your expected bounce rate before launching a campaign. Using proprietary algorithms, Bouncer analyzes your list and predicts how many emails may bounce, helping you make smarter sending decisions.
Free Email Verification Sampling
Test the quality of your email list before spending credits. Bouncer analyzes a representative sample and tells you whether your database needs cleaning.
AutoClean
Keep your CRM and marketing platform clean automatically. Every new or updated email address can be verified in the background, eliminating manual exports while protecting your sender reputation.
Bouncer Shield
Stop bad data before it enters your systems. Shield validates email addresses in real time and blocks invalid, disposable, malicious, or fraudulent submissions on your forms.
Toxicity Check
Identify toxic email addresses that could negatively affect your sender reputation, including spam traps, breached accounts, complainers, litigators, and widely circulated addresses.
Deliverability Kit
Monitor your email infrastructure with inbox placement tests, authentication checks, blacklist monitoring, and instant alerts when issues arise.
Email Verification API
Integrate Bouncer into your own applications with a fast, secure, and scalable API supporting both synchronous and asynchronous verification.
Data Security
Bouncer is GDPR compliant by design. All submitted email addresses are anonymized throughout the verification process, data is stored in EU-based data centers, and verification results are automatically removed after 60 days or sooner upon request.
This is Bouncer - helping businesses collect better email data, maintain healthier databases, and reach more inboxes.
Average Rating: 4.8/5.0
Total Reviews: 337
How Do G2 Users Rate Bouncer?
-
Has the product been a good partner in doing business?: 9.7/10 (Category avg: 9.1/10)
-
Campaign Performance: 8.6/10 (Category avg: 8.9/10)
-
Content : 8.6/10 (Category avg: 8.8/10)
-
Brand Reputation: 8.9/10 (Category avg: 8.9/10)
Who Is the Company Behind Bouncer?
-
Seller: Bouncer Sp. z o.o.
-
Year Founded: 2017
-
HQ Location: Wroclaw, Lower Silesian District
-
Twitter: @UseBouncer
182 Twitter followers
-
LinkedIn® Page: www.linkedin.com
77 employees on LinkedIn®
Who Uses This Product?
-
Who Uses This: CEO, Founder
-
Top Industries: Marketing and Advertising, Computer Software
-
Company Size: 85% Small, 9% Medium
What Do G2 Reviewers Say About Bouncer?
AI-generated summary from verified user reviews
Pros
- Users love the ease of use of Bouncer, appreciating its simple UI and quick email verification process.
- Users value the accuracy of Bouncer, ensuring reliable data for successful email marketing campaigns.
- Users commend the user-friendly interface of Bouncer, praising its intuitive design and ease of use for email verification.
- Users praise Bouncer for its reliable email verification, consistently delivering accurate results and improving list quality.
- Users appreciate the reliability of Bouncer, ensuring high deliverability rates and maintaining a safe email reputation.
Cons
- Users note the high cost of Bouncer, requiring careful management of credits to avoid running out quickly.
- Users note a 5% increase in unknown results with Bouncer's verification methods, yet find it manageable for their needs.
- Users experience frustrating email issues with bounces and lack of clarity on flagged emails, hindering effective communication.
- Users feel that improvement is needed in Bouncer's support options and deeper enrichment for email verification results.
- Users note the high cost of Bouncer, though some believe its accuracy justifies the expense.
What Are G2 Users Discussing About Bouncer?
