1. [Home](https://www.g2.com/) 2. ... 3. [Email Verification Software](https://www.g2.com/categories/email-verification) 4. [Bouncer Discussions](https://www.g2.com/products/bouncer/discuss) [ ![Product Avatar Image](https://images.g2crowd.com/uploads/product/image/large_detail/large_detail_ece25bf64a5df274bc13a7355d5b77d3/bouncer.png "Product Avatar Image") ](/products/bouncer/reviews) [ Bouncer ](/products/bouncer/reviews) (337)4.8/5 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. Show More * * * ### 89.0 Nps Score Already have Bouncer? ### All Bouncer Discussions Search Most CommentedMost HelpfulPinned by G2Newest All DiscussionsDiscussions with CommentsPinned by G2Discussions without Comments FilterFilter Filter byExpand/Collapse Sort by Most Commented Most Helpful Pinned by G2 Newest Filter by All Discussions Discussions with Comments Pinned by G2 Discussions without Comments ![Pinned by G2 as a common question](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Pinned by G2 as a common question") G2 Pinned by G2 as a common question • almost 3 years ago More Options - [ # What is Bouncer used for? ](/discussions/what-is-bouncer-used-for) What is Bouncer used for? [ Email Testing Software ](https://www.g2.com/tags/email-testing-software)[ Email Deliverability Tools ](https://www.g2.com/tags/email-deliverability-tools)[ Email Verification Software ](https://www.g2.com/tags/email-verification-software) * * * \<0\>0\>Upvotes * * * 1 Comment [![linkedin](/assets/social-logos/linkedin-afe65e46604a5bd5105ab9c856116204040b6b3f2b2d42562fc8071ca0c48ca0.svg "linkedin")](https://www.linkedin.com/shareArticle?mini=true&summary=Ask+Bouncer+questions+and+get+answers+from+expert+users+in+our+Bouncer+Discussions+section.&title=Bouncer+Discussions+%7C+G2&url=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fbouncer%2Fdiscuss) [![twitter](/assets/social-logos/twitter-61aaec80434c71387b8f7326e480592eae71c0a65afd051d66fce9b75a9bf417.svg "twitter")](https://twitter.com/intent/tweet?text=Bouncer+Discussions+%7C+G2&url=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fbouncer%2Fdiscuss&via=G2dotcom) [![facebook](/assets/social-logos/facebook-350d0b410d6b10debcf893050e803a8633d53561aa42807b087b8daf9be3668f.svg "facebook")](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fbouncer%2Fdiscuss) [![gmail](/assets/social-logos/gmail-6db42f21e7c254fae201b112bef0dd15d25223a5cbb32691ce80eab43761eadf.svg "gmail")](https://mail.google.com/mail/?view=cm&fs=1&tf=1&to=&su=Bouncer+Discussions+%7C+G2&body=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fbouncer%2Fdiscuss%0aAsk+Bouncer+questions+and+get+answers+from+expert+users+in+our+Bouncer+Discussions+section.) [![mail](/assets/social-logos/mail-d55c53b04bf49872e40cd2443b85a99caa23394e6cf154ae32a9d08377c15d86.svg "mail")](mailto:?subject=Bouncer+Discussions+%7C+G2&body=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fbouncer%2Fdiscuss%0aAsk+Bouncer+questions+and+get+answers+from+expert+users+in+our+Bouncer+Discussions+section.) ![copy_link](/assets/social-logos/copy_link-05d8dc5dc8576fc78425ad34d07241b060878835e555a30417ff41c18335e575.svg "copy\_link") ![Sunoj P.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Sunoj P.") SP Loading... [Sunoj P.](https://www.g2.com/users/e637e173-dcc5-48c7-a40f-16cff2421f7d "Sunoj P.") • about 6 years ago Freelance Data Specialist Freelance Data Specialist More Options - [ # Did you find any glitches in the software? ](/discussions/28154-did-you-find-any-glitches-in-the-software) Did you find any glitches in the software, like bounced mail, and invalid ids those are valid? [ Email Verification Software ](https://www.g2.com/tags/email-verification-software) * * * \<0\>0\>Upvotes * * * 1 Comment [![linkedin](/assets/social-logos/linkedin-afe65e46604a5bd5105ab9c856116204040b6b3f2b2d42562fc8071ca0c48ca0.svg "linkedin")](https://www.linkedin.com/shareArticle?mini=true&summary=Ask+Bouncer+questions+and+get+answers+from+expert+users+in+our+Bouncer+Discussions+section.&title=Bouncer+Discussions+%7C+G2&url=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fbouncer%2Fdiscuss) [![twitter](/assets/social-logos/twitter-61aaec80434c71387b8f7326e480592eae71c0a65afd051d66fce9b75a9bf417.svg "twitter")](https://twitter.com/intent/tweet?text=Bouncer+Discussions+%7C+G2&url=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fbouncer%2Fdiscuss&via=G2dotcom) [![facebook](/assets/social-logos/facebook-350d0b410d6b10debcf893050e803a8633d53561aa42807b087b8daf9be3668f.svg "facebook")](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fbouncer%2Fdiscuss) [![gmail](/assets/social-logos/gmail-6db42f21e7c254fae201b112bef0dd15d25223a5cbb32691ce80eab43761eadf.svg "gmail")](https://mail.google.com/mail/?view=cm&fs=1&tf=1&to=&su=Bouncer+Discussions+%7C+G2&body=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fbouncer%2Fdiscuss%0aAsk+Bouncer+questions+and+get+answers+from+expert+users+in+our+Bouncer+Discussions+section.) [![mail](/assets/social-logos/mail-d55c53b04bf49872e40cd2443b85a99caa23394e6cf154ae32a9d08377c15d86.svg "mail")](mailto:?subject=Bouncer+Discussions+%7C+G2&body=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fbouncer%2Fdiscuss%0aAsk+Bouncer+questions+and+get+answers+from+expert+users+in+our+Bouncer+Discussions+section.) ![copy_link](/assets/social-logos/copy_link-05d8dc5dc8576fc78425ad34d07241b060878835e555a30417ff41c18335e575.svg "copy\_link") ## Start a New Software Discussion Have a software question? Get answers from real users and experts [Start A Discussion](/products/bouncer/discussions/new) * * * ![Product Avatar Image](https://images.g2crowd.com/uploads/product/hd_favicon/12ecd578905e3af82585c35ee80d84c5/bouncer.svg "Product Avatar Image") ### Have you used Bouncer before? Answer a few questions to help the Bouncer community [ Yes ](javascript:void(0))[ Yes ](https://www.g2.com/authorize?form=signup&return_to=https%3A%2F%2Fwww.g2.com%2Fproducts%2Fbouncer%2Fdiscuss%3Fsmall_ask%3Dbouncer) No ## Top Contributors in Bouncer 1 ![Damien F.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Damien F.") DF Loading... ### [Damien F.](https://www.g2.com/users/699f7e57-459f-4199-851e-58ee24d1a1db "Damien F.") Head Of Business Development - Contract 1 pt