Amazing price and result quality for an email verifier. I have been using it for months though their API. It was very easy to integrate with n8n thanks to their online customer video tutorial. 💪🏻
Bedrijf heeft geantwoord
We verifiëren geen specifieke claims omdat reviewers hun eigen mening mogen geven. We kunnen reviews echter wel als 'Geverifieerd' bestempelen als we bevestiging hebben dat er een zakelijke interactie heeft plaatsgevonden. Meer informatie
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Lees wat reviewers zeggen
I purchased the most expensive package from Ninja Mail Tester, expecting reliable service, but it has been an absolute disaster. The servers seem to be constantly down, and despite waiting almost th... Toon meer
Bedrijf heeft geantwoord
I did not expected that app can save me so many working hours with such a decent subscription charge!
Bedrijf heeft geantwoord
We discovered an amazing tool to avoid bounces. Fast and reliable. A game changer. Paying 16.99 only to verify millions email per month is exactly what we were looking for. On top of that bounce level... Toon meer
Bedrijf heeft geantwoord
Bedrijfsgegevens
Geschreven door het bedrijf
MailTester.Ninja is a free and easy-to-use email checker that verifies or finds any address. 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. 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. Discover new potential contacts and leads with our sophisticated search tools, designed to explore and identify valid contacts that align with your business needs. 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.
Contactgegevens
7 Branch Place, N1 5PH, London, Verenigd Koninkrijk
- contact@mailtester.ninja
- mailtester.ninja
4,5
Uitstekend
132 reviews
Heeft 100% van zijn negatieve reviews beantwoord
Reageert doorgaans binnen 2 weken
Zo gebruikt dit bedrijf Trustpilot
Ontdek hoe ze hun reviews verzamelen, beoordelen en modereren.
Amazing price and result quality for an…
Amazing price and result quality for an email verifier. I have been using it for months though their API. It was very easy to integrate with n8n thanks to their online customer video tutorial. 💪🏻
6 april 2026
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Hi Jay !! :)
Thank you very much for taking the time to share your experience with MailTester.Ninja We sincerely appreciate your feedback and support.
Our team is constantly working to improve our services, and your input is extremely valuable to us. If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users. Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
I like the quality and the price but i…
I like the quality and the price but i think you can improve a lot the API. I work with clay and i cannot connect it because of the bad quality of the API
4 april 2026
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Hello,
Thank you for your feedback. We’re glad to hear that you appreciate the quality of our service and our pricing this is something we continuously strive to maintain.
Regarding your comment about the API, we take it very seriously. Our API is currently used by many customers, including integrations with tools like Clay, and its implementation is generally simple and straightforward. It does not require advanced technical skills: you simply need to use an HTTP API module, enter your API key, and map the email column as a parameter for verification.
That said, we understand that issues can arise in specific situations, and we would be happy to review your case in detail to assist you.
However, after verification, we could not find any customer account under your name in our database, nor any support request related to your situation. Additionally, our monitoring systems confirm that our service remained fully operational and uninterrupted during the period mentioned, with no major incidents.
These elements suggest that this review may not reflect a genuine experience with our platform. We would like to remind you that, in accordance with applicable laws, publishing false or misleading reviews may lead to legal action, and we reserve the right to initiate appropriate proceedings if necessary. Such statements may also engage the responsibility of their author.
Our priority remains transparency and customer satisfaction. If you have indeed used our service, we invite you to contact us via our contact form and specify the name under which you subscribed, so we can understand why your setup is not working and provide appropriate assistance.
Otherwise, we kindly ask you to reconsider or remove this review to ensure accurate information for all users.
Finally, if this review is part of an attempt to destabilize us on behalf of a competitor, we did not expect to generate such interest so quickly.
Best regards,
The MailTester Ninja Team ❤️
I did not expected that app with such a…
I did not expected that app can save me so many working hours with such a decent subscription charge!
3 maart 2026
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Morning Henrijs !!
Thank you very much for taking the time to share your experience with MailTester.Ninja We sincerely appreciate your feedback and support.
Our team is constantly working to improve our services, and your input is extremely valuable to us. If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users. Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
Amazing solution to avoid bounces
We discovered an amazing tool to avoid bounces. Fast and reliable. A game changer. Paying 16.99 only to verify millions email per month is exactly what we were looking for. On top of that bounce level is now almost zero ! 💪🏻🤗 Congrats
13 maart 2026
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Hello John 😁 !!
Thank you very much for taking the time to share your experience with MailTester.Ninja We sincerely appreciate your feedback and support.
Our team is constantly working to improve our services, and your input is extremely valuable to us. If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users. Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
I purchased the moTotal Waste of Money – Unreliable Service and No Supportst expensive package…
I purchased the most expensive package from Ninja Mail Tester, expecting reliable service, but it has been an absolute disaster. The servers seem to be constantly down, and despite waiting almost the entire day, nothing has worked. I’ve tried reaching out, but there’s been no progress or update.
I expected better service for the price, but it’s been nothing but a waste of time and money. Extremely frustrated with the lack of functionality and support. Definitely not worth the cost—look elsewhere for a more dependable email testing solution.
13 maart 2026
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Reliability and quality of service are essential to us, and any perception to the contrary deserves to be taken seriously.
However, after verification, no customer account matching your description could be identified in our database. Furthermore, our monitoring systems confirm that our service remained fully operational and uninterrupted during the period mentioned, with no major incidents. In addition, no support request corresponding to your situation has been recorded, which suggests that this review may not reflect a genuine experience with our platform. We also remind you that, in accordance with applicable law, the publication of false or misleading reviews may lead to legal action, and we reserve the right to initiate appropriate proceedings if necessary; such statements may also engage the responsibility of their author.
Our priority remains transparency and customer satisfaction. Therefore, if you have indeed used our service, we invite you to contact us directly with verifiable details so that we can properly review your situation and provide appropriate assistance. Otherwise, we kindly ask you to reconsider or remove this review in order to ensure accurate information for all users.
Finally, if this review is part of an attempt to destabilize us on behalf of a competitor, we did not expect to generate such interest so quickly.
Best regards,
The MailTester Ninja Team ♥️
Antwoord van MailTester.Ninja
Reliability and quality of service are essential to us, and any perception to the contrary deserves to be taken seriously.
However, after verification, no customer account matching your description could be identified in our database. Furthermore, our monitoring systems confirm that our service remained fully operational and uninterrupted during the period mentioned, with no major incidents. In addition, no support request corresponding to your situation has been recorded, which suggests that this review may not reflect a genuine experience with our platform. We also remind you that, in accordance with applicable law, the publication of false or misleading reviews may lead to legal action, and we reserve the right to initiate appropriate proceedings if necessary; such statements may also engage the responsibility of their author.
Our priority remains transparency and customer satisfaction. Therefore, if you have indeed used our service, we invite you to contact us directly with verifiable details so that we can properly review your situation and provide appropriate assistance. Otherwise, we kindly ask you to reconsider or remove this review in order to ensure accurate information for all users.
Finally, if this review is part of an attempt to destabilize us on behalf of a competitor, we did not expect to generate such interest so quickly.
Best regards,
The MailTester Ninja Team ♥️
Rapide et performant
Facile d’utilisation, je l’ai utilisé à plusieurs reprises pour trier mes listes de prospects, j’ai toujours été satisfait.
1 februari 2026
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Hello Nicolas 😁 !!
Thank you very much for taking the time to share your experience with MailTester.Ninja We sincerely appreciate your feedback and support.
Our team is constantly working to improve our services, and your input is extremely valuable to us. If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users. Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
The only email verifier you need!
I have tried over 5 email verifiers, but most of them fail at scale. Adopting MailTester has been one of the best decisions for me- the bounce rate just vanished.
3 januari 2026
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Hello Shubh !!
Thank you very much for taking the time to share your experience with MailTester.Ninja We sincerely appreciate your feedback and support.
Our team is constantly working to improve our services, and your input is extremely valuable to us. If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users. Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
This is the best tool I have EVER used…
This is the best tool I have EVER used for email verification.
I highly recommend.
They don't miss!
31 december 2025
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Hey Ben and Happy new year 🎊
Thank you very much for taking the time to share your experience with MailTester.Ninja We sincerely appreciate your feedback and support.
Our team is constantly working to improve our services, and your input is extremely valuable to us. If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users. Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
Great tech support.
10 december 2025
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Hey George ☺️
Thank you very much for taking the time to share your experience with MailTester.Ninja
We sincerely appreciate your feedback and support. Our team is constantly working to improve our services, and your input is extremely valuable to us.
If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users.
Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
Mail Tester Ninja is legit
Mail Tester Ninja is legit, amazing price for the value and quality you get. I can tell they are a smaller organization, but it feels like they actually care about email verification, and actually care about their service.
4 december 2025
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Hi Sam,
Thank you so much for your wonderful review, it truly means a lot to us !!
We’re delighted to hear that MailTester.Ninja brings you great value. Even as a small team, we put our whole heart into providing a reliable, human-focused, and genuinely helpful service, so knowing that it shows is incredibly rewarding.
Thank you infinitely for your trust and support. Please feel free to reach out anytime if there’s anything more we can do for you!
With our deepest gratitude,
The MailTester.Ninja Team 💙
Accurate and Budget Friendly Email verifier
I've been using Ninja for couple of months now. The verification accuracy is accurate and fast. Suggested to my clients and they are happy too and we're able to remove bad data and now we have bouce rate under 1%.
21 november 2025
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Hey Abe 😃
Thank you very much for taking the time to share your experience with MailTester.Ninja
We sincerely appreciate your feedback and support. Our team is constantly working to improve our services, and your input is extremely valuable to us.
If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja. We are always here to help and strive to provide the best possible experience for our users.
Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team
Antwoord van MailTester.Ninja
Hey Margarita ☺️😁
Thank you very much for taking the time to share your experience with MailTester.Ninja
We sincerely appreciate your feedback and support. Our team is constantly working to improve our services, and your input is extremely valuable to us.
If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users.
Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
11/10
Legendary tool.
Super cheap, accurate and flawless.
Support is great, absolutely 0 F*ckin complaints.
21 oktober 2025
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Morning Felip ☺️
Thank you very much for taking the time to share your experience with MailTester.Ninja
We sincerely appreciate your feedback and support. Our team is constantly working to improve our services, and your input is extremely valuable to us.
If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users.
Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
Antwoord van MailTester.Ninja
Hey Craig ☺️
Thank you very much for taking the time to share your experience with MailTester.Ninja
We sincerely appreciate your feedback and support. Our team is constantly working to improve our services, and your input is extremely valuable to us.
If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users.
Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
I can't believe how easy it is to find…
I can't believe how easy it is to find and verify emails with this tool.
27 april 2025
Antwoord van MailTester.Ninja
Good afternoon Lauren 😄
Thank you very much for taking the time to share your experience with MailTester.Ninja
We sincerely appreciate your feedback and support. Our team is constantly working to improve our services, and your input is extremely valuable to us.
If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users.
Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
productive working
I love how simple the interface is and the accuracy is spot on. I waste now no more time @invalid emails. My email marketing has been now more effective since i use them.
17 april 2025
Antwoord van MailTester.Ninja
Hello Caroyln 🙂
Thank you very much for taking the time to share your experience with MailTester.Ninja
We sincerely appreciate your feedback and support. Our team is constantly working to improve our services, and your input is extremely valuable to us.
If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users.
Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
Tried a few email checkers before
Tried a few email checkers before, but none were as easy to use as this one. It cleaned up my email list quickly and got rid of duplicates.
25 april 2025
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Hello 😇
Thank you very much for taking the time to share your experience with MailTester.Ninja
We sincerely appreciate your feedback and support. Our team is constantly working to improve our services, and your input is extremely valuable to us.
If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users.
Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
Honestly
Honestly, this tool is great. It verified all my emails in seconds and the results are clear. I've seen fewer bounces and better responses. It's one of the most reliable email checkers I've used.
21 april 2025
Review zonder uitnodiging
Antwoord van MailTester.Ninja
Hey Derek 😇
Thank you very much for taking the time to share your experience with MailTester.Ninja
We sincerely appreciate your feedback and support. Our team is constantly working to improve our services, and your input is extremely valuable to us.
If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users.
Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
Good Checker
I've used other email checkers, but none were as quick and accurate as this one. My email campaigns are way more successful now.
20 april 2025
Antwoord van MailTester.Ninja
Morning Marie 😇
Thank you very much for taking the time to share your experience with MailTester.Ninja
We sincerely appreciate your feedback and support. Our team is constantly working to improve our services, and your input is extremely valuable to us.
If you have any additional suggestions or concerns, please don't hesitate to contact us directly at support@mailtester.ninja.
We are always here to help and strive to provide the best possible experience for our users.
Once again, thank you for your feedback and for trusting MailTester.Ninja
Best regards,
The MailTester Ninja Team♥️
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