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Email Validation Tools to Verify your Email Lists

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Just drop us a mail at [email protected] and we will add it.


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A good email validation tool is an important part of every email
marketer's tool kit.

Ask why?

The key to any type of email marketing, whether you are sending emails to inbound leads or cold prospects is, maintaining a high level of email deliverability.

And the fastest way to ruin your deliverability is to repeatedly send emails to bad email addresses.

Even if you start with a very clean and high quality email list, it is recommended that you constantly re-verify the email addresses from time to time, as there is a good chance that a chunk of your emails can turn stale after every few months.

How can an Email Validation Tool help you?

1. An email validation tool takes in an email id and returns whether it is possible to send an email to the given email address.

2. It also provides additional context - such as whether the email id as a disposable address.

3. And most importantly it will alert you if the recipient is using a "Catch-all" email.

Based on this information, you will be able to remove the risky emails from your lists - and make sure your email is directed only at valid email address.

That is why it is so important to validate email addresses. And we made it easy for you by listing the best email validation tools.

30+ Email Validation Tools To Verify Your Email Lists


With Klenty’s Email Validation Tool, you can filter out invalid, non-existent, or fake emails. Users can select prospects and perform validation manually, or opt in to automatically validate every prospect they add to Klenty.

Once you validate the emails, you can start running your cold email campaigns using Klenty and book more meetings.

The plans start from $20 for 5000 validations.


One of the most popular email finding tools, Hunter.io also offers an Email verifier tool that come with several handy features like email format validation, DEA detection, MX records check, SMTP server connection, etc.

The tool costs $39/month for 1000 validations.


DeBounce service allows you to upload and validate lists of email addresses quickly and in a secure way.

The emails can be verified by uploading a list or in real-time on your website, thanks to their API.

They have a lot of features like spam removal filter, all domain checker, syntax validation and more and boast a 97.5% accuracy.

They follow an ad-hoc pricing with $10 for 5000 verifications.

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Bounceless.io is a nifty tool for marketers to clean and verify email lists and boost email deliverability.

With Bounceless.io, you can process email lists in bulk, in a number of different formats such as csv, txt or xls formats.

There is a free trial and the pricing starts from $59 for 4000 emails and so on.


ZeroBounce is a leading online email validation tool to verify emails in bulk and have a series of verification like IP address validation, syntax validation and verification of key recipient demographics

ZeroBounce is one of the best tools for email verification with an accuracy of 98.8%.

They also have API for real-time verification.

Their pricing starts from $35 for 5000 credits.

Email Hippo

Email Hippo offers a robust email validation service that allows you to upload lists with up to 500K records and guarantee a 99% valid and accurate email addresses.

The email list is cleansed and marked as: OK, Bad and Unknown.

Send Cold Emails and Follow-up Emails with
Klenty’s Inbuilt Email Validation

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Email Marker

EmailMarker is an email validation tool that helps you reduce bounces by validating email addresses. With the tool, you can verify a list of emails in different formats such as csv, xls, xlsx, txt as well as verify email addresses provided by website visitors, with their API.

Their basic plans begin at $3 for 1000 email verifications.


Mailfloss is a powerful email validation tool that helps you filter out invalid email addresses from your mailing list.

With just a few clicks, you can connect mailfloss with your ESP and from there it takes care by scanning and cleansing your lists.

They support MailChimp, Campaign Monitor, Constant Contact, Ontraport, ConvertKit, Aweber, and Active Campaign to easily verify mails.

Their basic plan starts from $17/month that lets you verify 10,000 emails.

Voila Norbert

Though primarily an email finder tool, Voila Norbert does an excellent job of validating email addresses - all you have to do is, upload a csv file and let the tool do the job.

Send Cold Emails and Follow-up Emails with
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EmailListValidation helps you remove invalid email addresses thus preventing email bounces.

It has a simple workflow:

  • Upload your email list in a TXT or CSV format file by dragging a file.
  • Checking the list with multiple stages of validation.
  • Download your list.


Millionverifier Offers email address checker services and real-time validation as subscribers sign up on your website.

They have a single API for integrating with your application and a bulk API for organisations wanting to resell email validation services.

They charge $175 for 100,000 emails.


Kickbox ensures that your emails are sent to actual users by removing low quality addresses from high-value contacts.

With the tool, you can simply drag and drop email lists to verify, import directly from your ESP or connect the real-time API to your webforms.

Kickbox follows an ad hoc pricing system, which starts from $5 for 500 verifications.


Email Checker ensures that an email address is valid and active, in real-time through its API.

They have a credit based pricing as well as a subscription model, to suit your needs that starts from $14.

Send Cold Emails and Follow-up Emails with
Klenty’s Inbuilt Email Validation

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Listwise is an incredibly simple email validation tool, that helps you verify emails and minimize your bounce rates.

Their features include:

  • Automatically corrects obvious typos
  • Removes invalid emails from your list
  • Removes duplicates from your list
  • No-reply removal

Their basic plan starts from $45 for 10.000 verifications.


Mailboxlayer is a powerful JSON API offering instant email address validation & verification via syntax checks, typo and spelling checks, SMTP checks, free and disposable provider filtering, and much more.

Based on REST, it is secured by 256-bit HTTPS encryption to help you with a fast and secure email verification.


Proofy.io is a powerful email validation tool that helps you minimize bounces. It has an accuracy of over 96%.

With it you can verify emails in bulk, with email deduplication, syntax checker , MX Records verifier and other validations.

Their pricing plan starts from $3 for 500 verifications.

Verify Email

Verify Email is a handy email verification tool to validate single email addresses as well as in bulk.

They have two kinds of pricing plans: A monthly subscription with monthly limits or an annual subscription where you can send validate specific number of emails all through the year.

Send Cold Emails and Follow-up Emails with
Klenty’s Inbuilt Email Validation

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XVerify is one of the best email verification tools out there, with an incredible accuracy of over 98% at a speed of verifying 100,000 emails under an hour.

Some of the features that make it so good are:

  • Auto Correction
  • Fraud Protection
  • Response Time - Less than one second

Xverify costs $0.01 for each email validation.


With over 100,000 users, Neverbounce is one of the top tools for validating emails addresses.

Once you upload the lists, they segment it into 5 simple categories: Valid, Invalid, Accept All, Unknown and Disposable with over 25 additional advanced metrics.

You can connect their API to verify single-emails or bulk lists and get free 1000 verifications per month.

They use an ad hoc pricing an ad hoc pricing with the cost of verifying one email coming at $0.008 for 10k mails.


WinPure’s Email Verifier Pro is simple and effective online email verification solution designed to clean and verify email lists to boost email deliverability.

With the service, you can accurately identify whether email addresses on your list are valid and deliverable, allowing you to remove harmful email addresses before you mail. You can verify upto 100,000 emails at a time by uploading .txt and .csv files.

Their pricing plan starts from $20 for 5000 verifications.

Email List Verify

EmailListVerify is a great tool to validate emails, thanks to its 8 advanced verification processes.

The tool ensures that you get rid of spam traps, hard bounces, disposable and catch-all emails etc.

With 99% accuracy, guaranteeing zero false positives and a 10x reduction in bounce rates, some of the features of EmailListVerify are:

  • Domain and SMTP validation
  • Syntax verification
  • Spam-trap detection
  • Catch-all domains checking
  • MTA validation
  • Real-time email checking via API etc.

They have both a subscription model as well as pay as you go model.

Send Cold Emails and Follow-up Emails with
Klenty’s Inbuilt Email Validation

Try Klenty free for 14 days. No credit card required

Start Free Trial