Say goodbye to bounces, duplicates, spamtraps, invalid and low-quality data...

Captain Verify is the best solution to Verify the validity of your emails & mobile numbers very easily.
Captain Verify Service

More than 15,000 companies trust us, why not you?

Plus 8 000 entreprises nous font confiance

Check the validity of your emails

Check the validity of your emails
Checking your email list is easy! Import your mail list from your CSV file (encrypted via SSL). We do an audit and analysis of the file. Once the verification of your list is complete, you can download your own file.

Clean up your databases

With CaptainVerify, check & clean up your mailing lists quickly. Say goodbye to invalid, incorrectly entered / misspelled addresses, hardbounces, NPAI and other spamtraps, honeypots. A simple, fast and secure service to improve your deliverability.

Improve your deliverability

Avoid losing conversions by keeping your emails invalid. Refine your data as quickly as possible to better segment your mailings lists. Captain Verify allows you to optimize your marketing campaigns and boost your ROI.

Secure verification complies with GDPR

We strive to secure the privacy of our customers and their data (in accordance with the GDPR) and use the latest safety standards. Our servers are located in France and ISO 27001 certified and all the information transmitted are encrypted.

HLR Lookup: Check your mobile phone numbers

Home Location Register. Check the availability of mobile phone numbers before contacting them. Captain Verify controls the validity of your numbers with operators (even in the event of portability) by sending directly an HLR Lookup type request to the mobile network.
Check your mobile phone numbers

Our mission: Analyze your database.

Captain Verify provides an accurate statistical report on the quality of your database. Whether it’s emails: valid, invalid, unknown, free, risky, disposable…

Customer Reviews

This is what our customers think of CaptainVerify.

Meelo is a service company fighting against fraud and unpaids in the banking, automotive, distribution, etc. Our problem is to be able to certify the existence and reliability of a telephone number, as well as to use information such as the telephone operator, portability information, etc. in our various scoring algorithms, allowing the end recommend the acceptance or refusal of the financing file. We use the Captain Verify API in production currently for one of our large accounts carrying out thousands of files / months. We are widely satisfied with the results obtained.

Benjamin of Meelo
Benjamin of Meelo

Marketing Manager in a company specializing in entertainment on the web. Our company had collected hundreds of thousands of email addresses that had not been operated. I had to find a solution to clean this immense mail base before I could launch my email marketing campaign. I found a simple and very effective online solution: I was able to start with confidence in the campaigns and the results were very good.

Karine R
Karine R

Manager of a web agency, it is very important to have a good deliverability. It is essential to do a clean up of its mailling list to optimize its email marketing strategy. I recommend Captain to all my clients, it is an indispensable service.

Gregory P.

I regularly use large databases to promote the activity of my clients. The quality of the bases is not always at the rendezvous, the penalties of mail servers, arrive quickly. So we looked for a solution to make the bases cleaner. We used Captain Verify which in use proved to be a reliable and great tool we recommend!

Laurent S.

Thanks to Captain Verify, I was able to segment my marketing base. I have a small ecommerce website, emails are often used for commercial purposes and I was able to lower my bounce rate and remove my duplicates quite easily.

Géraldine E.


Our pricing model is simple.

You have a wide choice of checks according to your needs. With or without commitment and without hidden fees.
We accept all the main credit cards.
email checks for USD
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More than 5 million emails to check? Contact us.
mobile number checks for USD HT
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More than 100,000 mobile numbers to check? Contact us.

Ready to join CaptainVerify
and improve your deliverability?

Eliminate bounces
Remove duplicates
Improve your reputation
No hidden fees
Without commitment
Degressive prices
Easy & Fast
Optimize your emailing
Data privacy