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Bulk Email Verification Tool

Verify email addresses in real-time: clean your list of invalid addresses, prevent hard bounces, boost deliverability, and protect sender reputation. Trusted by 5000+ email marketers for maintaining a clean and effective email list.



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100 free verifications • No credit card required






email list cleaning

How It Works

  • Upload your email list in a CSV format. We'll remove duplicates and emails with incorrect format - you do not pay for these..
  • We detect and filter out invalid, spammy, or non-operational email addresses from your list. We do this without sending any actual emails.
  • The result? A clean email list optimized for your marketing campaigns, which can be downloaded as a CSV.

View all benefits


Why Choose MailVerifier.io?

  • Pricing as low as $0.0003 per email
  • No hidden fees or monthly commitments
  • Save 400% compared to alternatives
email list cleaning



In just three simple steps, clean your email list and enjoy higher deliverability for your email campaigns.

1. Sign Up for Free

Create your account and gain access to our email verification tool. New users get 100 free verifications!

2. Purchase Credits

Purchase credits depending on the size of your email list. Credits never expire.

3. Clean Your Email List

Upload your email list for cleaning or verify individual email addresses.

Send emails with confidence

Get started for free • No credit card required



email list cleaning

Features That Set MailVerifier Apart

  • Bulk Verification: Easily upload and verify an entire list of email addresses in one go.
  • High Accuracy: Our advanced algorithms ensure you get the most accurate verification results.
  • Secure and Compliant: Your data is safe with us; we adhere to GDPR and other privacy regulations.

Get started for free

No credit card required

Frequently asked questions

Email verification or validation is the process of confirming the validity of an email address. It is essential for maintaining a healthy email list and improving deliverability.

Yes, you can verify a list of email addresses by uploading a file to the Bulk Email Verifier on your dashboard. It helps in cleaning your email lists by identifying invalid or risky email addresses.

Since MailVerifier.io does not actually send an email to verify an email address, it is not possible to achieve complete accuracy. However, based on our recent testing, using MailVerifier.io's email verification service resulted in a bounce rate of only 3.7% for emails that were marked as valid. By using our email verification tool, you can expect a high level of deliverability, with an average rate of up to 96%.

By verifying and cleaning your email lists, MailVerifier.io can help improve your overall email deliverability. It identifies invalid or risky email addresses that can lead to hard bounces and harm your sender reputation.

Absolutely. We adhere to GDPR and other privacy regulations to ensure your data is safe and secure.


Experience the difference a clean and verified email list can make in your email marketing efforts today.



Sign up for a free trial now.

100 free verifications • No credit card required