A leading platform in the realm of email verification and discovery. As an advanced mail tester, we offer comprehensive solutions to ensure the accuracy and deliverability of your emails.

At MailTester.Ninja, we are committed to enhancing your communication strategies. Whether you are looking to clean up your existing mailing list, prevent fraud, or comply with GDPR, our tools are tailored to meet your requirements.

Embrace the power of a reliable mail tester, email checker, and email finder with MailTester.Ninja unlimited and take your e-marketing campaigns to the next level.


Discover new potential contacts and leads with our sophisticated search tools, designed to explore and identify valid contacts that align with your business needs.

Our email checker functionality is designed to validate your recipients in real-time, reducing bounce rates and increasing the efficiency of your marketing campaigns.

By verifying each recipient address, MailTester.Ninja helps maintain the integrity of your sender reputation, preventing your emails from being flagged as spam. Moreover, as an effective email finder, MailTester.Ninja aids in expanding your outreach.