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

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Read our original research based on a survey we ran on the state of email list hygiene practices

CASE STUDY

Woodpecker

With Bouncer, every email Woodpecker sends reaches the right audience.
No bounces, no wasted effort.

Sign up now and validate 100 emails at no cost.

185 million
Emails verified in the past 12 months
10 million
Undeliverable emails prevented last year
20%
Increased email deliverability thanks to Bouncer

About Woodpecker

Woodpecker automates cold email outreach for sales teams, lead generation agencies, and solopreneurs. It personalizes outreach at scale, ensuring businesses connect with the right prospects without harming the sender’s reputation.

With Bouncer built in, every email is verified before sending – bounces are blocked, domains stay protected, and messages reach inboxes where they belong. Trusted by businesses worldwide, Woodpecker keeps outreach running smoothly so teams can focus on closing deals instead of dealing with email issues.

The Challenge

Unverified lists & buried domains

Without validation, Woodpecker users face two major challenges:

Deliverability risks

Sending emails to unverified addresses led to bounces. Even a few bounces from major providers like Microsoft could damage domains and stop campaigns from working.

Customer impact

Unvalidated lists meant wasted outreach efforts, low response rates, and lost budgets. Spam traps and fake contacts turned campaigns into a guessing game instead of an effective, targeted strategy.

The Result

Woodpecker integrated Bouncer and saw IMMEDIATE results:

Reliable email validation

Bouncer’s real-time checks and risk scoring keep email lists clean and in printing order.

  • Blocks invalid addresses before sending
  • Prevents spam traps and risky contacts

Flexible risk control

Users control risk levels to keep outreach effective, safe, and extremely flexible for business.

  • Adjustable risk parameters
  • Custom filtering for different campaigns

Seamless & fast integration

Bouncer works silently in the background, verifying emails without any extra steps or hassle.

  • No manual setup
  • Built directly into Woodpecker

Conclusion

After integrating Bouncer, Woodpecker saw a dramatic improvement in both onboarding and deliverability. In the past 12 months alone, over 185 million addresses were verified – preventing more than 10 million undeliverable emails.

With real-time validation and dynamic risk scoring, Woodpecker protected sender reputations and maximized outreach efficiency.

Margaret Sikora
CEO of Woodpecker
Bouncer has improved our overall business. They’ve helped reduce our bounce rates, identify potential problem addresses before they’re sent, and provide our clients with a reliable solution to keep their lists clean and effective.

See why top sales teams rely on Bouncer to land more emails in inboxes

Stop bounces before they happen, and keep your outreach on track.

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