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22 Best email verification tools (Free & paid)

14 min

Email verification tools can save you a lot of trouble by getting rid of all invalid addresses like disposable email addresses (DEA), undeliverable addresses, and spam traps.

At the end of the day, the last thing you want is for your emails to end up in the recipient’s spam folder. And nobody likes low-performing email campaigns, high bounce rates, and a bad sender reputation.  

Fortunately, there are some wonderful tools available that can help you clean up your email list and ensure that you comply with spam prevention policies that are set by internet service providers (ISPs).

With our expertise in email marketing here at GetResponse, we’ve curated a list of mostly free email checkers that would ensure that will help you get rid of invalid emails.

Expert tip: These email checkers are no replacement for a confirmed opt-in system like the one you’ll get from an email marketing or CRM platform like GetResponse, Mailchimp, HubSpot, etc…

Best email verification and validation tools

We’ve handpicked the tools below for you to help you ensure that no invalid addresses or fake emails lurk amongst the good ones in your mailing lists:

1. Alfred by Email Industries

Alfred by Email Industries is an email list hygiene service that offers an all-in-one threat detection and email validation service to ensure your sent emails are delivered successfully.

Alfred by Email industries - Free Email Checker

With over 9 billion emails cleaned since 2008, Alfred is a next-level email checker. It eliminates invalid addresses and identifies good contacts. It removes spam traps, abandoned addresses, and more, guaranteeing that only safe contacts with valid email addresses receive your emails.

Although not an entirely free email checker, Alfred is an excellent option for businesses looking to lower their risk while still reaching their audience. The Interface is simple to use, and you can choose from 7 different ways to break down your list, including by email provider. Alfred’s scoring system is the only one of its kind on the market.

It’s completely compliant and built to be GDPR-compliant from the get-go.

You can start with a free account, and their pricing depends on the number of emails in your list.

2. Bouncer

If you’re looking for a super easy-to-use, intuitive, and secure (SOC2 and GDPR compliant) email verification and deliverability service, check out Bouncer.

Bouncer free email validation tool.

It’s probably the simplest and one of the most powerful tools on this list to navigate, making it ideal for those unfamiliar with online marketing tools and services.

On top of their high-powered simplicity, Bouncer also promotes a friendly model with a pay-as-you-go option with credits that never expire or are used up for duplicate emails or unknown results. Email addresses are checked through either batch analysis or via email verification API, which is just like the rest of the platform — easy to use.

3. ZeroBounce

ZeroBounce’s platform is known for two major attributes: being tough and reliable. It comes equipped with military-grade security protocols to ensure that your data stays safe and secure. 

ZeroBounce checks your email list both in real-time and in bulk so you can get your email list validated and keep it that way. And if you ever have any issues with the platform, they’re easy to contact with their 24/7 customer service.

4. Kickbox

Kickbox‘s email verification platform has been a player in the anti-spam industry for over 12 years and brings that expertise to its email deliverability tool. Kickbox isn’t the fanciest platform with the most features, but what it does—it does well.  

Kickbox email validation

They’ve dedicated their platform to addressing the email list cleaning needs of their customers.

Kickbox’s integration provides both batch and single email address verification processes, but the real star of the show is their real-time email verification API.

It can inform potential clients of common misspellings and typos at the point of signup ensuring that you don’t miss any prospective customers before they enter your sales funnel.  

5. Hunter

Hunter is one of our favorite quick go-to email verification tools when it comes to email lookup and validation. It’s a browser-based free email checker and can quickly verify a single address without logging into a full-blown system.

Hunter free email verifier

Currently, 2,000,000+ companies such as Google, IBM, GetResponse, and Microsoft use Hunter regularly.

Their lightweight Email Verifier is extremely efficient and makes validations at multiple levels: format, domain information, the response of the mail servers, and comparison with Hunter’s unique base of 100+ million professional emails.

You can use it as a free email verifier if want to check if a certain email address exists or verify emails in bulk with their paid plan.

6. Mailfloss

Mailfloss is a set-it-and-forget-it type of tool. Through a simple setup process that takes only minutes, you can have Mailfloss automatically clean your email list daily without any other manipulation on your part. 

But it’s not just email addresses within your email list that Mailfloss can update. The platform can automatically update, delete, or unsubscribe tags and custom fields within your contacts list. They currently have a 7-day free trial and paid plans starting at $25 a month.

7. Emailable

Emailable is a no-nonsense email verification tool dedicated to providing you with the best deliverability for your email list as possible.

They’re trusted by many premier organizations, and it’s easy to see why. Emailable boasts one of the most in-depth APIs for validation and verification on the market today. 

The platform allows for bulk, single, and real-time email address checking, so you’ll never be caught off guard. And while the results are not automatically displayed, you’ll find detailed reports emailed to your registered address where you can see a full breakdown of each entry cleaned on your email list.  

8. TrueMail

Finding an email verification tool that’s able to cost-effectively scale with your business can be tough. Fortunately, TrueMail can provide a solid solution.

While smaller businesses and clients can take advantage of the platform, TrueMail caters to those looking for enterprise-level solutions with affordable price-per-verification scaling. 

Aside from being one of the fastest email verification tools around, TrueMail has a great deliverability rating of up to 99%. Their system works strictly on real-time multi-step verification ensuring that you won’t miss out due to archived or historical data. 

9. QuickEmailVerification

Trusted by some of the biggest names around, QuickEmailVerification is designed to be a reliable tool for businesses. Having a business email address to sign up with may make you eligible for free credits.

They have an unprecedented deliverability rate with a consistent 99% rating. That figure is also bolstered by a claimed 100% Google email address verification accuracy. 

QuickEmailVerification works through a 10-step process, including catch-all email checkers, duplicate removal, role email checkers, and much more.  

10. Clearout

Are you looking for a versatile email verification tool that’s suitable for businesses of all sizes? Then consider Clearout.

It offers a user-friendly interface and various verification options, such as bulk verification, real-time verification through API integration, and verification at the point of capture.

Trusted by 40,000+ businesses worldwide (as per their website), Clearout has been recognized as a high-performer by G2, achieving a 4.9/5 score. If you’re looking to improve your email deliverability and email engagement, you’ll want to give them a try.

11. Neverbounce

NeverBounce is an email verification and cleaning platform that ensures email deliverability with a three-pronged approach: 

Verify email addresses: Check that the emails you collected at a marketing event are legitimate and deliverable with the Verify platform. Or, integrate NeverBounce’s Verify platform into your website forms, lead pages, and more to make sure every email address is accurate before it makes its way into your database. 

Clean: Marketers can also use the Clean tool to upload a bulk email list to NeverBounce. The list will be automatically analyzed for free to help marketers know if it needs cleaning. To review and clean a large number of email addresses, utilize the Clean API to build email verification into your marketing flow. 

Sync: Sync is an automated list-cleaning tool. Connect NeverBounce to your CRM or email marketing service, and the software will review and clean up your list regularly.

12. Dropcontact

Dropcontact offers a robust email checker tool. It enriches, corrects, and deduplicates B2B contact data, including email addresses.

Key features include confirming email addresses, standardizing information, and removing harmful characters.

The platform processes email addresses using proprietary algorithms to ensure they are valid, with a high accuracy rate. This makes Dropcontact particularly effective for B2B marketing and sales efforts, ensuring that your email list is reliable and GDPR compliant.

13. lemlist

lemlist is an advanced sales engagement platform that can also serve as an email verifier. It allows users to find and verify email addresses directly within the platform, avoiding the need for third-party tools.

lemlist’s email finder and verifier ensure a high accuracy rate in identifying valid email addresses, which is crucial for effective outreach and lead generation.

This tool integrates seamlessly with LinkedIn, allowing users to extract LinkedIn information and validate email addresses. Lemlist also emphasizes avoiding spam, ensuring emails don’t end up in the recipient’s spam folder.

14. Zoominfo

ZoomInfo is a comprehensive B2B contact and company database that specializes in providing detailed business information.

Although the platform is not primarily an email verifier, it has an extensive database allowing users to access and verify accurate contact information, including emails. This helps ensure the effectiveness of outreach campaigns and lead-generation efforts.

Additionally, ZoomInfo is known for integrating this data seamlessly with various CRM and sales platforms, enhancing overall sales intelligence and prospecting strategies. For more specific details about their contact verification and validation features, you can visit ZoomInfo’s website.

And if you’re looking for cheaper alternatives, you can check out this article on ZoomInfo competitors.

15. Debounce

Debounce is an email validation service designed to improve the accuracy and reliability of email marketing campaigns. It primarily focuses on reducing email bounce rates by cleaning email lists.

Debounce’s service checks for invalid, non-existent, and disposable emails to ensure that email campaigns reach their intended recipient’s mail server. Additionally, it identifies and corrects common typos in emails and provides a real-time API for verifying emails.

This tool is particularly useful for businesses and marketers who want to maintain a high-quality email list and improve the effectiveness of their email communication.

16. Mailercheck

MailerCheck is an email verifier and a deliverability testing tool. It offers features like email list verification, email insights for maximizing deliverability, inbox placement testing, real-time API verification, and blocklist monitoring.

MailerCheck allows users to: verify single emails, bulk verify emails, or validate emails in real time using their API. Additionally, it provides tools for testing and optimizing email content and inbox placement to ensure emails reach their intended recipient’s mail server.

The platform also includes DMARC monitoring and reporting tools to track domain activity and protect against unauthorized use.

17. Briteverify

BriteVerify, part of Validity, is a tool focused on ensuring the quality of contact data, particularly email lists. It offers real-time validation to prevent invalid data from entering databases.

BriteVerify also performs bulk validation to identify and remove outdated or invalid emails. This service helps maintain a clean and actionable database, enhancing customer and internal team experiences.

BriteVerify’s features improve sender reputation and email deliverability, ensuring effective communication in sales and marketing efforts.

18. Verifalia

Verifalia is a free email checker. Its features include real-time syntax validation, domain/MX/DNS checks, mailbox availability checks, spam trap detection, and more.

Verifalia categorizes emails as Deliverable, Undeliverable, Risky, or Unknown, and assigns detailed status codes for precise classifications. It also features real-time verification via API, allowing for seamless integration with other applications.

The service is designed to improve email list quality, reduce bounce rates, and improve sender reputation.

19. Bounceless

Bounceless is a service designed to improve email deliverability by cleaning email lists and reducing bounce rate.

It specializes in verifying emails to ensure they are valid, deliverable, and not likely to result in bounces. Bounceless serves as an email verifier, and a bulk email list clean. These services are essential for maintaining a clean and efficient marketing contacts database, enhancing campaign performance, and protecting sender reputation.

20. MillionVerifier

MillionVerifier offers comprehensive email verification services, boasting a high accuracy rate of over 99%. Its features include cleaning old email lists, verifying new emails in real time, blocking temporary or disposable emails, and keeping email marketing accounts clean with its unique EverClean service.

Million Verifier

MillionVerifier also offers an email checker, bulk email verification, an email verifier API, and various integrations with marketing platforms. It emphasizes its accuracy, competitive pricing, and user-friendly experience.

21. EmailListVerify

EmailListVerify is an email checker and bulk email list verifier. It can help you enhance email marketing efficiency, maintain a good sender reputation, and reduce bounce rates.

EmailListVerify offers features like bulk email verification, real-time API verification, spam trap removal, and disposable email detection.

EmailListVerify is designed to ensure high deliverability rates for email campaigns by keeping email lists clean and updated. This service is beneficial for marketers and businesses seeking to maintain a healthy email database, thereby improving engagement and protecting sender reputation.

22. Xverify

Xverify‘s platform is aimed at improving email deliverability by eliminating hard bounces, reducing spam complaints, and minimizing fraud. It offers real-time and batch processing for email data, to help you identify deliverable addresses.

Xverify’s system checks each email to confirm the username’s registration at the domain and includes built-in fraud protection. With an accuracy rate of 98% across major email domains, Xverify also features auto-correction for common typos and instant results for verifications.

The service supports a variety of implementation methods, including a Javascript plug-in and API integration, to suit different technical needs.

Still don’t know which email verification tool to choose?

Choosing one of these tool doesn’t have to be difficult. But too often, people select a tool that doesn’t meet the needs of their business.  

In this case make sure to go over all the questions and criteria below.

Do you need to verify email addresses in bulk?

Any email verification tool worth its salt can perform bulk email verification. This is exceptionally important for those who have massive email lists. If you can only verify and validate emails one at a time, you’re bound to miss fraudulent or unworthy emails.

Single email verification capabilities

However, it may be important to verify email addresses one at a time. Especially if you have doubts about a single email being a disposable email address (DEA) or one of those spam traps.

If your chosen email checker can single out specific emails, you can save time by eliminating malicious intent right when you see it. 

Do you need to actively check for invalid addresses?

Wouldn’t it be nice if your email verification tool caught invalid emails before they were even added to your list? Of course! Fortunately, many companies make this feature available through the use of intelligent APIs to prevent dirtying up your email list in the first place.

Speed and accuracy

This may go without saying but… You need a tool that can handle your email list with speed and accuracy. Don’t settle for anything less. Each missed invalid email is just one more potential scammer or a blemish on the deliverability of your mail server.  

Does this email checker integrate with your marketing platform?

Even the best tools can be rendered useless if they just don’t fit. If your chosen tool doesn’t integrate with your marketing system, it’s not a good match for you.  

If you’re using GetResponse, you can check all the possible Email verification integrations on this page.

Detailed reporting  

It’s always good to stay on top of things when it comes to your email list—whether that’s adding to it or filtering it out. Look for a tool that can deliver detailed reports, so you never miss a change.  


Lastly, you need to consider your budget. Which platform is the most cost-effective for what you need? You don’t need to pay for an enterprise-level solution if your email list doesn’t require it. A free email verifier that is browser based might be enough in this case.

Aside from saving money with your tool, you can also help increase your marketing budget by investing in an email marketing platform such as GetResponse.

Robert Bernal
Robert Bernal
As GetResponse’s United States Senior SEO Manager, Robert has a unique behind-the-scenes look into online marketing campaigns and leveraging company brands. If not digging through search engine results, Robert spends his time developing marketing strategies and creating content to help train others. But when the working day is done, you’ll find him spending quality time with his family and fighting monsters that live under the bed. Reach out to Robert and connect via LinkedIn.