An easy-to-use SaaS application that allows you to quickly verify mailing lists

Ultrafast, robust and easy-to-integrate email verification API

Easily connect your Bouncer account with marketing platform you love, and verify your email list effortlessly

Identify invalid, malicious, or fraudulent email addresses at the moment of entry.

Identify if your email list contains any toxic email addresses

Improve your email campaigns by enriching customer data with publicly available company information

Test your inbox placement, verify your authentication, and monitor blocklists

Accuracy you can trust. Results you can prove.

Email List Verification for SaaS

Stop fake signups before they become fake users.

Bouncer helps SaaS teams catch junk emails at signup, protect free trials, and ensure activation emails actually reach their destination.

Bouncer Email Verification Tool

Overview
Free Email Verification Sampling
Bounce Estimate
Rich Output
Verifies Unverifable
Organizations Management
And many more…

Our app is super simple to use!
Just drag and drop your email list, ands let our email verification solution do the work!

Using Bouncer email verifier will not only help in inbox placement of your email campaign but will save your energy, time and money!

Bouncer allows you to test the quality of your list, without actually verifying it – completely free of charge! Based on a randomly selected sample of your list, Bouncer will tell you if your list is fine, or if you will actually need to clean it. This will help you reduce the time and cost of verifying lists that are safe to send to!

Verifying your email list is only half the journey. We all know how tricky it can be to make wise and knowledgeable decisions about which addresses to keep in your contacts lists, especially for “risky” ones.

That is why Bouncaaer is the only email checker that gives you information about what to expect after sending your campaign! Using our proprietary algorithm and analyzing your whole list, we will calculate how many of them may bounce back.

We love it when our customers make informative decisions.

That is why Bouncer provides not only deliverability status and reason but also characteristics of an email address such as Score, Toxicity Flag, Email Provider, Role, Free and Disposable, Full Mailbox Flags etc.

Bouncer, is one of the very few email verification solutions that is capable of verifying sophisticated email set-ups and configurations:

  • Catch-All email addresses hosted by Google and Microsoft
  • Anti-Spam filter protected email addresses,
  • Email addresses hosted by niche providers.

This makes it the one with the highest coverage, the lowest amount of unknown results, and deep verification of catch-all email addresses.

You can easssily add multiple organizations, teams, and users to your Bouncer account with just one click.

Manage them, give access to the credits and take control of the usage. The number of users and organizations can even be unlimited.

Bouncer has all the psssossible features of taaahe best email verification solutions that you did not even have to know about and much more.

Protect your product, your pipeline,

and your users

Fake signups waste resources. Bounced welcome emails hurt onboarding. Disposable inboxes distort your metrics. Bouncer plugs directly into your signup flow to stop all that noise before it reaches your product or your CRM. You’ll reduce churn, prevent freemium abuse, and ensure your key messages actually land.

With flexible pricing and an API your devs will like, it scales with your SaaS — from your first 100 users to your first million.

Why SaaS companies choose Bouncer

  • Catch fake and risky signups in real time
    Improve onboarding and protect your trial funnel.
  • Reduce bounce-related churn
    Ensure onboarding flows, auth emails, and updates get delivered.
  • Built for SaaS growth
    Flexible pricing, dev-friendly API, and no bloat.

Bouncer for SaaS

01

Prevent free trial abuse on the spot

Catch disposable or alias addresses used to bypass account limits or fraud filters. You stay in control of who gets in.

02

Improve activation and NPS

No more first-touch emails bouncing. Bouncer supports your product-led growth by ensuring users get what they signed up for.

03

Re-engage safely, on autopilot

Clean up stale lists before a launch, pricing update, or churn campaign, all without risking a hit to your sender reputation.

Fits your growth stack — frontend to backend

Bouncer works where SaaS products operate: on sign-up forms, in CRMs, in support tools, and inside onboarding flows. Marketing, support, and product can all benefit from cleaner data.

SaaS teams love Bouncer

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Let Bouncer clean your signups — and protect your product

Bad data = bad users. Bouncer helps SaaS teams verify at scale, reduce churn, and run cleaner onboarding, all without adding noise to your stack.

Common Questions

Why should SaaS companies verify emails from signups or lead forms?

Even when leads come through your own site, typos, bots, and disposable emails can slip in. Verifying emails ensures you’re capturing real users, which improves onboarding, engagement, and conversion rates.

How does email verification support product-led growth (PLG)?

PLG relies on smooth onboarding and timely communication. Email verification ensures that welcome emails, product tips, and activation prompts actually reach your users—key for converting free users into paying customers.

What impact does a dirty email list have on deliverability?

Sending to invalid or fake addresses leads to bounces, which harms your sender reputation. That increases the chances your legitimate emails land in spam—hurting user engagement and churn metrics.

Should we verify emails in real time or in bulk?

For SaaS, real-time verification at the point of signup is ideal. It stops bad data before it enters your system. Bulk verification can help clean up legacy lists or prepare for campaigns like reactivation or upsell.

Is verification worth it if most signups are organic?

Yes. Even with organic growth, you’ll encounter typos and throwaway addresses. Verifying helps your sales, marketing, and success teams focus on users who are actually reachable and more likely to convert.

What’s a good email verification tool for SaaS companies?

A tool like Bouncer is a great choice—fast, accurate, and easy to use. It’s ideal for SaaS teams that want flexible, privacy-compliant verification without complex integrations or bloated features.