If you’re involved in the email marketing space and rely heavily on cold emails to reach your target prospects, you probably already heard of the critical importance of verifying your list before sending a single email.

The good news is there are a lot of tools that can help you with that. a reliable email validation tool can be used to check whether an email address is valid, they are incredibly essential because they can help you avoid bounced emails, spam complaints, and deliverability issues, and they can also help you improve your sender’s reputation.

But with so many options on the market, it can be pretty overwhelming for the average person to choose the best one that fits their needs.

That’s why we’ve put together this article as we picked and chosen the best 15 email validation tools that are currently dominating the market, as well as guidance on some of the key factors to consider when selecting the best tool for you.

Ready? Let’s dig in.

Email Validation Tools
email list validator

Email validation is the process of verifying that an email address is valid and exists. Email addresses can be invalid for many reasons, such as typos, wrong domain names, or inactive accounts. Invalid email addresses can bounce back when you try to send emails to them, which can damage your sender’s reputation and deliverability.

Email validation is a crucial part of any email marketing campaign. Before you add any email address to your mailing list, it’s highly recommended to verify that it’s valid with an email validation service. This will help you avoid bounces and keep your sender’s reputation high and make your emails land straight in the inbox.

What Is an Email Validation Tool?

Mail Sender

An email validation tool is a software solution that helps to verify the accuracy of email addresses in a given list. This is done by checking the syntax of the email addresses and checking if the domain name exists. Email validation tools can also check if an email address is deliverable or not.

Email validation tools are important because they help businesses to avoid sending emails to invalid or non-existent email addresses. This can save businesses a lot of time, money, and resources sending emails to people who don’t exist or won’t even bother opening their emails.

There are several different email validation tools available on the market, so it is important to choose one that best suits your needs. Some factors to consider include the size of your email list, the accuracy you need, and whether you want features such as bounce handling or blacklist checking.

But don’t worry, in this article we’re going to be covering everything you need to know before choosing your very own email validation tool.

What Causes an Email Address To Be Invalid?

Email Adress Invalid

Changed server provider

Take an example in which a person first uses a local email service provider before migrating to Gmail or Hotmail. In certain instances, the recipient will not get your emails, even though the older ones could still be active.

Switching positions within a company

Depending on their position, each employee will have a different email address. Employees in the C-suite, mid-level, and junior ranks use different email address formats. Your email messages may bounce when someone is promoted from a junior to a mid-level position since their email address is no longer functional.

Changed job

People frequently change jobs, and when they do, emails may be forwarded to another person or become unreachable.

Duplicated email addresses

There are a few ways that duplicate email addresses can end up on an email list. Maybe someone accidentally entered their email address twice when signing up for something. Or, perhaps someone mistyped their email address and it ended up being slightly different than what they originally intended.

Whatever the reason, duplicate email addresses can cause major problems for an email marketing campaign. That’s because if someone receives multiple emails from the same sender, they’re likely to either unsubscribe or mark the emails as spam. Either way, it hurts the chances of the campaign being successful.

Domain no longer exists

When a company closes or changes its domain, the email addresses associated with it become inactive. Using email verification services, you can quickly verify whether the email address is authentic or is associated with an invalid domain. By doing this, the bounce rate could be significantly reduced.

Benefits of Email Validation Tools:

Save Time With EmailMarketing
validate email list

Reduce bounce rates

Using an email validation tool can reduce your bounce rate by checking for valid email addresses before you send your emails. This ensures that your emails are going to real people, and not bouncing back because of an invalid address.

An email validation service can save you time and money by preventing bounces, and it can also improve your sender’s reputation. This means that more of your emails will get through to the inboxes of your recipients, and fewer will be marked as spam. You’ll also receive an instant bounce analysis.

Clear Insights

Email validation software can be an incredibly powerful tool to provide accurate insights into your entire email list engagement levels and pinpoint the accuracy of email addresses. A good verifier can help to improve the deliverability of emails and prevent bouncebacks.

Additionally, an email validation tool can also provide valuable information about the health of an email list, such as the number of invalid or undeliverable addresses. Gives you crystal clear live data and deep insight into the behaviors of your targeted audience, which can help you curate better, targeted content shortly.

Less Spam Complaints

Repeatedly getting flagged as spam is not a good look for either your brand or your sender’s reputation to the email provider.

In order to maintain a good reputation, you need to make sure that your emails aren’t getting flagged as spam. Unfortunately, this isn’t always possible. Sometimes, emails end up in spam folders because of things like incorrect addresses or bad domain names or you’re simply sending them to people who do not want to hear from you.

An email validation service can help reduce the number of spam complaints by verifying the accuracy of email addresses before messages are sent. This ensures that only valid addresses are used, which reduces the chances of messages being sent to spam folders.

Additionally, an email validation tool can also help improve deliverability by checking if there are any issues with the domain name associated with your email address. By taking these steps, you can help ensure that your emails always reach their intended destination and that your email marketing campaigns are producing significant results.

More Engagement

With the rising number of people with short attention spans due to the explosion of bite-sized, short-form content.

Email engagement rates have been on the decline in recent years. Let’s be honest, who wants to read a promotional email when they can just keep scrolling on TikTok?

it’s a tough game.

That’s why it’s important to stand out and to combat this, many companies are now using email verification tools to increase engagement rates.

An email validation tool will help you check whether an email address is valid and deliverable. This ensures that only real people are receiving your emails, which in turn increases engagement rates by curating content for a targeted customer avatar.

Improve your sender’s reputation

A sender’s reputation is a measure of how likely an email from a specific sender will be considered spam. Email providers use a variety of signals to determine a sender’s reputation, including engagement metrics like open and click-through rates, as well as complaint rates.

A sender with a good reputation is more likely to have their emails delivered to the inbox, while a sender with a poor reputation is more likely to have their emails filtered into the spam folder.

Sender reputation is important because it can impact the deliverability of your emails. If your sender’s reputation is poor, your emails are more likely to be filtered as spam before they ever reach the recipient’s inbox. This can result in lost opportunities and decreased engagement with your subscribers.

To maintain a good sender reputation, you should try to verify your email list regularly and focus on delivering quality content that your subscribers will find valuable and engaging.

Increased email deliverability

Using an email validation service will not only improve deliverability, but it will also make your emails more targeted and relevant to those who are still subscribed. This will lead to higher open and click-through rates, which will in turn lead to more conversions.

Email deliverability is one of the most important aspects of email marketing, you could have the best marketing team behind you creating winning emails and using the best copywriting practices, and designing the latest, fanciest branding elements but if your emails are not getting delivered to your intended recipient, or landing in the promotional or even worst the spam folder…

Then you pretty much wasted both your time and resources. That’s why taking a step back and taking a deeper look at your deliverability analytics will help you determine whether you truly need to start considering cleaning your email list

What To Consider When Choosing an Email Validation Tool?

E-mail Marketing Service
email checker list

When it comes to choosing the best email validation tool, you want to look for certain criteria that if combined together would make your return on investment much higher. Here are some things to consider when choosing an email validation tool:


The email validation tool should have a high accuracy rate in order to ensure that all invalid emails are identified and removed from your list.


The tool should be able to validate emails quickly in order to avoid any delays in your email marketing campaigns.

Ease of use

The tool should be easy to use so that you can quickly get started with using it without any complications and should be user-friendly for people who are not really tech-savvy.


The price of the email validation tool is also an important consideration, especially if you are working with a tight budget. It’s important to choose a tool that has both the best quality possible and also a cost-effective price especially if you have a large email list to process.

Check for reviews

There are many email validation tools available, but not all of them are created equal. It’s important to do your research and read reviews before purchasing an email validation tool.

There are a few things to keep in mind when reading reviews. First, take into account the source of the review. If it’s from a reputable website or blog, it’s more likely to be accurate. Second, look for reviews that are detailed and specific about the features of the tool. This will help you get a better idea of whether or not the tool is right for you.

Finally, don’t forget to compare prices before making your purchase. Some email validation tools can be quite expensive, so you want to make sure you’re getting one that fits your budget.

Live customer support

Before you purchase your email validation tool, it’s incredibly important to check if they have live chat support on their website. This can help you tremendously if you got stuck in something while using the tool for the first time.

Having a live chat support person will help guide you through every step of the way while you go about exploring the interface.

What makes the PERFECT email validation tool?

email validation tool
mailchimp omnivor

Sniper Accuracy

While there are many email validation tools on the market, not all of them are accurate. It’s important to find an accurate email validation tool because using an inaccurate one can lead to problems like bounced messages and deliverability issues.

Now, you might be wondering, what makes an accurate email verification tool?

  1. The ability to check for common typos and mistakes.
  2. A robust database of known good and bad email addresses.
  3. The ability to handle large lists of addresses quickly and efficiently while maintaining high-quality results.

The integrations supported

You should look for a tool that has various integrations with other notable platforms, if you’re looking to improve your cold outreach, you need a validation tool that is compatible with your other outreach tools.

This will ensure that all of your work goes smoothly because your tools are in harmony with each other.

Having a separate validator for email will only add to your workload, which is not what you want for your overall productivity.

Instant results

If you want to take this to the next level and experience maximum productivity, then you’re going to need an email list verifier that produces results instantly.

This is one feature you should never sacrifice. an email validator that is fast and has excellent functionality when processing large sums of emails simultaneously is a vital component in not squandering time when you’re about to verify a bulk email list.

Think about how much of your time is worth and if it’s a good idea to invest in a relatively costly tool that can potentially save you a lot of time in the future.

The Best Email Validation Service:

Email List Validation:

Email verification services
email health checker

Email List Validation is a cutting-edge email validation service with a foolproof user interface that integrates with dozens of email marketing service providers and allows you to check your email list in bulk.

We focus on automating the email verification process and making it as seamless and efficient as possible so you can focus on your business. We support a variety of email marketing providers such as HubSpot, Mailgun,  Active Campaign, MailChimp, and much more.

What’s great about Email List Validation is that it detects invalid addresses, temporary emails, duplicate emails, and spam traps and also removes hard-bounced and duplicate emails, and verifies syntax errors in just minutes with a verification process, making it one of the best email verification tools in the market today.

What are some of Email List Validation’s best features?

  • 99% Accuracy – once you verify your list with Email List Validation, you never have to worry about your email deliverability. Our algorithm weeds out every single spam trigger, invalid email, and hard bounce and gifts you a pristine list full of valid leads.
  • Complainers verify – eliminates all email addresses matching our Complainer Database.
  • Secured – your data is protected with high-level encryption. Under any circumstances, it won’t get lost, tampered with, or misused. We are GDPR compliant too.
  • Syntax verifier – checks for any invalid syntaxes and immediately removes them.
  • Real-time bouncing – sends untraceable emails to any address which can’t be validated using other methods.
  • Spam trap removal – gets rid of any sketchy emails that could be Spam Traps.


Email List Validation offers both pay-as-you-go and monthly billing plans. All you have to do is choose the number of emails you need to validate and sign up for a free account and you can also receive a quote if you want to pay monthly.

Pay-as-you-go rates start at $0.0007 per email for up to 5 million emails and can go as high as $0.0076 per email for up to 2,500.

If you have more than 1 million emails to process you can start by contacting Email List Validation’s sales team for custom enterprise pricing.

14 Best Email Validation Tools

1. ZeroBounce

Zero Bounce rate
email health check

ZeroBounce is a reliable email address checker that can effectively remove spam traps, and spoofed, invalid, and misspelled addresses from your email lists to prevent bounces and protect your sender’s reputation.

it is a widely used email verification tool used by some of the big players in the space such as TripAdvisor, Allstate, and even Comodo. It offers several validation processes and mechanisms and various integrations.

Some of the common pros of ZeroBounce are that it has a well-designed and user-friendly interface and has partnerships with several third-party integrations and also adopted an AI mechanism to enhance the accuracy of results.

Some of the downsides of using ZeroBounce are that it’s not really a cost-effective option and not everyone can afford its relatively expensive services.

2. NeverBounce

Never Bounce Bulk Email
email validation service

NeverBounce is an established SaaS company that was launched back in 2014. It currently serves over 100,00 customers and it has worked with some major well-known brands such as Uber, Girl Scouts, QuickenLoans, and even Dell and Harvard Medical School.

NeverBounce offers a variety of services to facilitate and streamline the process for the majority of its customer base. They can verify a bulk email list that contains potentially millions of email addresses and they can even verify a single email address. The email verification process work by validating the mail server and removing any duplicated emails and detecting syntax error.

It also checks the validity of a domain name and if a particular list is blacklisted.

Here are some of the features offered by ZeroBoucne

  • Bulk email list verification.
  • Bounce rate analysis.
  • Integrations.
  • User-friendly.

3. Email List Verify

Email Verification Api
email validation

Email List Verify is a popular email verification tool used by industry giants such as MailChimp, Shopify, and Rackspace. They scanned over 5 billion email addresses since their initial launch.

Email List Verify works by conducting various performance checks to detect invalid and inaccurate email addresses and automatically removing them from the list. So that means any inactive, unresponsive, and invalid accounts are permanently deleted, and that also applies to temporary and duplicated emails.

It also checks emails for spam traps, syntax errors, and hard bounce rates.

Here are some of the features offered by Email List Verify

  • Bulk email verification – Upload your list of unchecked emails and receive a validated, clean and ready-to-go list with a deliverability rate of over 99%.
  • Email checker API –  By adding this API to your website’s registration, opt-in, and contact forms, you can immediately avoid receiving any invalid email addresses by preventing form submissions until a user enters a working email address.
  • Various integrations – Email List Verify is fortunate to be integrated with various well-known email marketing platforms, making it easier and seamless for anyone to clean their list in just a few clicks.

4. Hunter

Email Verifier
email verifier online

Hunter is a well-known tool within the digital marketing community, it’s widely used for the purpose of finding emails for email outreach and it also has a built-in email verifier technology for cleaning up your email list which will result in a dramatic and noticeable increase in your outreach campaigns delivery rate

Its overriding feature allows you to find the email address of your business contacts based on domain search, first and last name, and email address lookup. The email verification tool detects invalid emails, temporary emails, blacklisted emails, and hard-bounced emails.

Here are some of the features offered by Hunter

  • Bulk email list verification – Upload as many emails as you want in a spreadsheet.
  • Single email verification – You can use the primary tool on the front page to verify a single email address.
  • API verifications – By adding this API to your website’s registration, opt-in, and contact forms, you can immediately avoid receiving any invalid email addresses by preventing form submissions until a user enters a working email address.

5. Finder.io – Email Verifier

Verifi EMail Id
email verification service

Finder.io is known for its incredible ability to scrape emails from the web, but it also has a built-in email verification technology designed by the 500 apps to verify the legitimacy of emails. It has a large database of around 430 million email addresses.

And it’s relatively easy to use with a friendly user interface, all you need to do is sort the emails according to your company’s requirements.

Thanks to its advanced technology, searching for the email addresses of prospective clients is now easier than ever. You are able to check for pre-existing email addresses of the decision makers with an email checker technology to verify the leads

You can verify the authenticity of any email address in just a few short seconds, this will result in your email open rate substantially increasing, and you’ll also have access to a wealth of information from a large database of prospects.

6. Debounce

Test Your Email

DeBounce is a sophisticated tool that can reduce the number of bounce rates by preventing addresses from disposable email accounts, email messages with formatting errors, syntax errors, and much more.

This email verification software stands out for its incredible simplicity in just a 3-step verification process, it’s an incredible option for inexperienced people just getting started with email verification.

With a rating of 4.8 out of 5 stars on Trustpilot, DeBounce is one of the highest-rated email verification tools out there.


  • it doesn’t offer many integration options, so setting up a third-party integration can be a challenge for some people.

7. Pabbly

Pabbly Grow Your business

Pabbly delivers error-free information, but it operates at a slower pace than alternative providers. Pabbly uses less tedious manual labor, so it delivers better results than its competitors, it also eliminates duplicate entries immediately and uses anti-grey listing technology.


  • Relatively inexpensive.


  • Some people complain that it’s not entirely accurate when verifying a large database of emails.

8. Mailbox Validator

Email validation Service
bulk email checker

MailboxValidator is a simple, affordable, and hassle-free email address validation tool. To begin, you can start uploading your mailing list from a spreadsheet or CSV and wait for the email verifier to tackle the job. You will immediately receive your own results. According to MailboxValidator, verifying 500,000 emails is not as prolonged as it would be for other users and it typically takes roughly a day.


  • Fully integrated with one of the big players in email marketing.
  • Demo access availability.


  • Some people complain that the customer service can be improved.

9. Clearout

Clear out Email Finder
email verification tool

If you’re not looking for a particularly all-in-one tool and only need a tool that can verify your email list efficiently and quickly then this might be the best option for you.

Clearout has some of the best customer reviews out of virtually all of the tools mentioned above, and it was proven that it has the lowest bounce rate percentages according to some experts in the field.

And if that doesn’t you enough, Clearout has also some of the fastest processing times, a recent experiment has been conducted and it was shown that ClearOut has been able to process large volumes of data in less than 7 minutes.

Notable features:

  • Multiple integration options.
  • Excellent customer service.

10. Bouncer

Validation & verification
email checker

Bouncer is known to be one of the most budget-friendly email verification tools out there.  so, if you’re on a tight budget and looking to verify a large volume of email lists but are afraid of hurting your pocket then this might be the best option for you…

You can get started instantly starting from only $2 and verify over 100 emails. Additionally, with a processing time of only 5 minutes; it is also among the fastest tools on this list.

Notable features:

  • The best option for companies with smaller budgets.
  • Integrated with various big brands including Lemlist.

11. TrueMail

Email Easy Fast Cheap
email verifier

TrueMail is arguably one of the simplest tools to use for total beginners who are just starting out, and it also offers an affordable price for people who limited budgets.

The suggested correction option is one feature that some people enjoy and claims perform exceptionally well. It helps tremendously with increasing deliverability and also enables you to spot issues with invalid email addresses.

The only noticeable downside with this email verifier is that it is relatively new and still in its early infancy so it doesn’t really have that many reviews. So, it will a tough one for the skeptical and the only option to see if it’s a good fit is to test it out yourself.

12. DropContact

Enrich all your B2B Contacts
email verification

DropContact is another all-in-one tool that helps you source, qualify, and verify email addresses all in one place without being overwhelmed with using a variety of tools.

This tool can be extremely helpful and valuable to individuals who are looking to take their cold email outreach strategies to the next level. Thanks to its diversified abilities it can quickly become a must-have tool for any individual looking to grow their business.

Notable features:

  • Great for finding hidden contact information.
  • Great place to find french B2B leads.

13. Emailable

Accurate & Scure E-mail marketing
bulk email verify

This is also a great email verification tool for people who wish to process a bulk list of email addresses. It has a built-in email-checking tool that can detect misspellings in domain names as well as email addresses that seem to be disposable and invalid.

Emailable can recognize email addresses from free email service providers and offers name and gender detection. Which is an unheard-of feature in virtually any email verification tool that we’ve mentioned above.

Notable features:

  • You can get detailed reports for every email you send, from inbox placement, blacklist reports, and even spam and authentication.
  • You can instantly get notified if your email gets backlisted.

14. Kickbox

verify email address

Kickbox user interface is entirely different from all the honorable mentioned above, With the help of an easy drag-and-drop interface, you can verify email addresses in mass using email verification technology.

Using Kickbox’s API, it is also possible to execute mass email list verification. The API can be used anywhere on your website where email addresses are collected to do real-time email address validation.

DMARC monitoring is one of Kickbox’s distinctive features. It assists in ensuring the legitimacy of every email sent from your domain and deters unwanted senders from attempting to masquerade as you.

Notable features:

  • DMARC monitoring.
  • Consulting services for large enterprises seeking guidance for high deliverability practices.
  • Inbox reporting analyses to verify that you’re landing in the inbox.

Key Takeaways:

Choosing one those email validation tools can be overwhelming, we hope that we’ve simplified that for you by listing the best email verifying tools in the market.

You’re now more than ready to start verifying your email list and start seeing noticeable results from your email marketing.