Free Bulk Email Verification: All You Need To Know

Email marketing has today become a must have for every business with an online presence. As the world pivots to a more digital base, the more businesses are doubling their efforts in catching these new customers. One method that has always excelled in marketing in the 21st century is email marketing. However, it can be a tad complicated. When using email marketing, one has to account for verified and unverified emails. This article will tell you all you need to know about email verification and the various free bulk email verification platforms out there.

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What is Email Verification

Email verification is a way to check for the validity of an email address. Without it, a business may have a mailing list of a hundred thousand addresses, and they could all be irrelevant. It helps you identify which emails are functional in order to maximize delivery effectiveness. This process can be done for a single address or in bulk.

Why You Need Bulk Email Verification

There are quite a number of reasons why you need bulk email verification. For starters, it will help you weed out malicious and fake emails. Would you rather continue sending emails to addresses that don't work or would you rather have control over your email deliverability? Cleaning your mailing list is indeed needed if you want to make the most out of your mail campaign.

It also allows you to avoid spam traps that can make your future emails be marked as spam. Spam traps are created to lure spam message senders. Any message sent to such addresses will automatically be marked as spam by service providers. As a business who relies on email marketing, the worst thing that can happen to you is having your emails end up in the spam folder.

How Bulk Email Verification Works

Each free bulk email verifier has its own algorithm for performing the validation process. It makes use of multi layer testing to check irregularities, intricate algorithms, and artificial intelligence in identifying fake mail addresses or spam traps. After a successful email validation, fake emails are weeded out of your mailing list.

The validation process involves mail address syntax check following IETF standards, domain/mx record check, role based account detection, disposable address detection, spam trap detection, DNSBLs and URI DNSBLs for blacklisting, and simple mail transfer protocol. In the end, your mailing list will only have addresses that are worth marketing to.

Free Bulk Email Verification Tools

There are quite the number of free email verification services to choose from which makes the decision process all the more daunting. However, here are a few free bulk email verifier software we recommend you can choose from.

1. ZeroBounce

Price: $65 for 10,000 credits | Free trial: 100 free monthly validations

ZeroBounce is one of the most popular free bulk email verifiers in the world, and it’s also our favorite bulk email verify tool. Why? Because it’s priced affordably, offers an accuracy of more than 98 percent, and provides access to a whole host of useful features. For example, ZeroBounce uses an AI algorithm to give each content in your email list a score indicating how likely is the contact to engage with your emails. You may also be happy to hear that the free bulk email validation tool is GDPR and SOC 2 compliant, which means that it won’t cause any compliance-related problems.

👍🏼   Pros:
  • Feature-packed
  • GDPR and SOC 2 compliant
  • Easy to use
  • Great support team
👎🏼   Cons:
  • Sometimes runs a bit slow

2. Email Verifier

Price: $65 for 10,000 credits | Free trial: 100 free monthly validations

Email Verifier from Hunter is one of the fastest and most precise email verification tools that allows to verify validity of any professional email address. Email Verifier makes validations at multiple levels: format, domain information, response of the mail servers and comparison with Hunter’s unique base of 100+ million professional email addresses. Email verification can be performed for a list of email addresses with the Bulk Email Verifier. Upload your file in the dashboard and watch it being enriched with the email validations. The main services of Hunter are also available directly through their API.

👍🏼   Pros:
  • Generous free trial
  • Simple UI
  • Offers a very quick and precise process of verification
👎🏼   Cons:
  • Free plan doesn’t allow to do bulk verifications

3. AeroLeads

Price: starts at $49 per month | Free trial: 10 credits

AeroLeads is one of the best free bulk email verification tools out there according to user reviews. However, addresses validation isn’t the only thing this tool can accomplish. The purpose of AeroLeads is to help businesses make sales, and that’s what particularly makes their tool worth using. Other things you can do with AeroLeads include helping you find business emails and phone numbers on LinkedIn and Xing all with a single click.

👍🏼   Pros:
  • Quick and accurate
  • Integrates with popular CRM tools
  • Easy to use
👎🏼   Cons:
  • The UI could use an update

4. Pabbly Email Verification

Price: $25 for 10,000 emails | Free trial: free trial for 14 days

Pabbly has been around for almost a decade now. Over the years, they have pride themselves for creating software that meets the needs of businesses. Today they offer one of the best email verification tools for free. Like AeroLeads, their tool packs quite the number of features. With it, you can do more than just verify email lists.

👍🏼   Pros:
  • Superb customer service
  • Generous free trial
  • Plain and simple user interface
👎🏼   Cons:
  • Not all features are explained as clearly as they could be

5. MyEmailVerifier

Price: $36 for 10,000 credits | Free trial: 100 free email verifications

MyEmailVerifier is a simple email verification tool that helps businesses weed out invalid addresses in order to increase campaign effectiveness. MyEmailVerifier effectiveness is up to 98%. However, unlike the other email tools, MyEmailVerifier isn't completely free. To use it, you need to purchase credits - although, they offer 100 free credits when you sign up for the first time. You can test MyEmailVerfier tool for free to see its effectiveness.

👍🏼   Pros:
  • Useful bulk export feature
  • Intuitive user interface
  • Offers large discounts
👎🏼   Cons:
  • Customer support sometimes takes a while to respond

6. Mailfloss

Price: starts at $17 per month | Free trial: free for 7 days

Mailfloss is a free email verifier software solution that can quickly and reliably detect all fake emails in your list and remove them to prevent them from hurting your business. Because it supports most popular email service providers, you can get started in less than 60 seconds, and you have up to 30 days to cancel your subscription and ask for a full refund. Best of all, Mailfloss starts at just $17 per month, which is a true bargain considering how capable it is.

👍🏼   Pros:
  • Affordable pricing
  • Great functionality
  • Excellent support
👎🏼   Cons:
  • Some features take awhile to figure out

7. MailerCheck

Price: $64 for 10,000 verifications | Free trial: 200 free credits for email verification

If you’re looking for free bulk email verifier software that offers a very quick process of verification, then look no further because MailerCheck guarantees a 98 percent delivery rate after completing just three simple steps. It integrates with multiple leading email platforms and offers straightforward and fair pricing. You can choose between a flexible pay-as-you-go model or a cost-effective monthly subscription. The latter option is great for seasoned marketers who understand their needs and appreciate any discount they can get.

👍🏼   Pros:
  • Generous free trial
  • Offers a very quick process of verification
👎🏼   Cons:
  • Rather expensive

8. SendGrid

Price: starts at $14.95 per month | Free trial: 100 emails/day

SendGrid is a reputable provider of email services with more than 80,000 paying customers from around the world. Its email validation API is powered by advanced machine learning algorithms and capable of instantly improving email deliverability. But SendGrid’s biggest attraction is the free email list verification plan, which lets you perform 100 checks every single day. That’s right, the free plan is essentially unlimited (at least if you’re okay with waiting until it restarts). For this reason alone, SendGrid is a wonderful choice for entrepreneurs who don’t have that many email addresses to check.

👍🏼   Pros:
  • Functional free plan
  • Really good transactional API
  • Easy setup process
👎🏼   Cons:
  • Documentation is sometimes weak

9. Emailable

Price: $30 for 10,000 verifications | Free trial: 250 free credits

While most bulk email verifier free tools let you check only around 100 emails before requiring you to spend money, Emailable gives you more than double the number of free verifications, 250 to be exact. You can use the software to detect and get rid of undeliverable, risk, unknown, and duplicate emails without any special knowledge because its user interface is simple and straightforward. If you’d like to take things to the next level, then there’s nothing stopping you from setting up Emailable’s list cleaning automation features.

👍🏼   Pros:
  • Simple and straightforward
  • Validation is quick and accurate
👎🏼   Cons:
  • Can be a bit spare on documentation

10. Email Hippo

Price: $85 for 10,000 emails | Free trial: 15 free email validations

Email Hippo offers a free email verify software solution intended for people who need to check and clean lists of up to 500,000 email addresses. After creating a user account and logging in to the admin dashboard, you can upload your list as a .CSV file. Email Hippo will then tell you how much the verification of your list will cost and let you choose how to pay. Users who would like to check over 500,000 email addresses can upgrade to a subscription plan or inquire about custom enterprise pricing.

👍🏼   Pros:
  • Great performance
  • Integrates with other Email Hippo products
  • Can process multiple lists at once
👎🏼   Cons:
  • Expensive
  • Only 15 free email validations

11. DeBounce

Price: $15 for 10,000 verifications | Free trial: 100 free credits

DeBounce is one of the most affordable free bulk email validation tools out there. For just $15, you can check 10,000 emails, and you even get 100 free credits (with 1 credit = 1 email address) when you sign up. DeBounce has useful anti-greylisting capabilities that reduce the number of unknowns by simulating a well-configured email engine. We like how well-documented all features are, and the hundreds of real users who have rated DeBounce as a 5-star bulk email verifier software on Trustpilot and other review sites seem to agree.

👍🏼   Pros:
  • Inexpensive
  • Extensive API
  • Nice user interface
👎🏼   Cons:
  • No integration for Acumatica ERP and CRM

12. Proofy

Price: $29 for 10,000 email checks | Free trial: 100 free email checks

Proofy may not be the biggest name in the verification game, but that doesn’t stop it from being one of the best options available. As is so often the case with smaller companies, its customer support service really goes above and beyond to make you feel appreciated and cared for. All new users get 100 free email checks, but you can get 500 extra checks just by allowing Proofy to occasionally send you marketing emails. The good news is that your email validation credits, so you can stretch any number of credits you purchase as far as you want.

👍🏼   Pros:
  • Great accuracy
  • Not too pricy
  • Excel files not supported during import
👎🏼   Cons:
  • No option to download past invoices

13. EmailListVerify

Price: $24 for 10,000 verifications | Free trial: 100 email verifications

EmailListVerify presents itself as a full-featured bulk email verifier that does everything competing verifiers do while costing only half their price. You can upload your lists as CSV, XLS, or TXT files, and EmailListVerify will happily analyze them. The tool consistently achieves great results because it has a spam trap checker, disposable email cleaner, catch-all domains checker, syntax errors validator, email duplicates remover, and several other checks.

👍🏼   Pros:
  • Fairly priced
  • Helpful customer support
👎🏼   Cons:
  • Inconsistent use for terminology
  • The process of cleaning lists can be time consuming

14. Clearout

Price: $58 for 10,000 verification credits | Free trial: free demo version

Trusted by over 10,000 multi-sized businesses, Clearout is one of the most accurate free bulk email verification tools out there. Its high accuracy doesn’t, however, come cheap. To be more specific, it costs nearly $60 to verify 10,000 email addresses using Clearout. There are several competing services that can verify twice as many emails for the same price. It’s also worth noting that you can’t really test the tool by yourself. You can only request a 30 minutes demo with a Clearout’s product specialist.

👍🏼   Pros:
  • Delivers on what it promises
  • Google Sheets integrations
  • Really quick & accurate verification
👎🏼   Cons:
  • The free demo lasts only 30 minutes

15. NeverBounce

Price: $50 for 10,000 emails | Free trial: 1,000 free credits on successful signup

NeverBounce is trusted by over 125,000 users, including many successful organizations and enterprises. NeverBounce users appreciate its extremely fast and thorough verification capabilities, but they agree that the tool could be less expensive. The steeper price is somewhat justified by the fact that NeverBounce offers an extensive API that lets you verify emails at the point of entry and track progress with real-time statistics. You can also simply drop in its JavaScript code snippet to quickly and easily add NeverBounce real-time verification services to your online forms.

👍🏼   Pros:
  • Easy to navigate and understand
  • Extremely fast and thorough
  • Frequently updated
👎🏼   Cons:
  • Pricy

16. Bouncer

Price: $20 for 10,000 verifications | Free trial: 100 credits for free

Bouncer is a free email verification service that’s based and hosted in the EU, protected by strong data security and privacy protection laws, such as the GDPR. All new users get 100 free email verification credits, which they can instantly use to see what Bouncer is all about. Customer support is provided via email or chat, and Bouncer doesn’t distinguish between small businesses and Fortune 500 companies in any way, so you can always expect your questions to be answered promptly and in a friendly manner.

👍🏼   Pros:
  • Excellent success rate
  • Cost-effective
  • Intuitive documentation
👎🏼   Cons:
  • The user interface could be improved


Email verification will save you a lifetime of pain as a business and will help you make the most of your cold marketing campaigns. While there are businesses who do not use email verification tools, the consequences of not cleaning your mailing lists can be dire. You can use any of the recommended free tools to make the most of your email campaign without breaking the bank.

Free Bulk Email Verification - FAQs

1. How do I verify email addresses in bulk?

Verifying mail addresses is quite an easy process. All you have to do is upload your mailing list into your email verification tool using the preferred file format. Typically, all verification tools accept xls and csv files.

2. What is a bulk email verifier?

Bulk email verifier is a tool that can be used to verify email validity in bulk. Emails are verified for functionality, spam trap, disposable address detection, and more. Invalid and harmful emails are filtered out of your mailing list leaving you with only active mail addresses. This tool increases your marketing campaign effectiveness and reduces bounce rates.

3. What are the best free bulk email verification tools?

We recommend Pabbly, MyEmailVerifier, and AeroLeads. While they may not all be totally free, they offer free trials for all new customers without requesting for your card details. These free tools offer great features and up to 98% effectiveness.

4. What are the benefits of using a free bulk email verifier?

Using a free bulk email verifier comes with a lot of benefits for businesses that run a lot of email campaigns. Without testing your mailing list with an email verifier, your business address can be flagged as spam when emails are sent to spam traps. It will also help you filter emails that are incorrect or do not belong to any user.

Clean Email Team

Updated on Aug 31, 2021