6 Best Email Verification Tools: Tried and Tested Picks

Out of plenty claiming to be the one, we detail and test six best email validation services and tools for marketers and business owners.

Updated on November 15, 2024

Criteria for Evaluating the Best Email Verification Tools

With hundreds of email validation options available, we advise creating a checklist of your email verification software must-haves. Knowing what to look for will guide you in narrowing down to the tool or service that best meets your marketing needs.

To help you get started, these are a few of the key decision-making factors we considered in evaluating the best email verification tool:

  • Available Features
  • The best email-verifying software ideally offers a comprehensive list of services and tools that can allow marketers and business owners to reach specific marketing goals through the platform. Some of the core features available in most of the top-rated email verification tools are bulk email verification, email reports and analysis, blocklist monitoring, lead generation, and inbox placement testing.


  • Speed
  • The best email validators must be able to process and validate tens of thousands of emails within an hour. This efficiency is highly beneficial to marketers and business owners, who can allot more time to developing other aspects of their campaign strategies.


  • Accuracy
  • Even if the best email verifier software has a comprehensive list of features or an impressive process speed, these will be moot if it cannot accurately determine invalid email addresses or spam emails. For the best results, our recommendations for the best email verification software all boast an accuracy report of 95% and higher.


  • Security
  • When inputting valuable contact information like your customers’ email addresses, safety and data privacy should be one of your topmost priorities. As an added measure, we recommend seeking out a GDPR-compliant email verification service.


  • Customer Support
  • Using third-party software programs may require a learning curve, especially for first-time users. For us, the best email validator comes with a reliable customer support service that helps facilitate troubleshooting and interface navigation, maximizing our overall experience.


  • User Ratings
  • Considering other user experiences with different email verifying tools also helped us gauge the overall value of each software. Look for organic, non-paid reviews of each platform to get genuine insights into a particular tool.


  • Affordability
  • We all know how important affordable pricing can be, especially for those with limited budgets. Although seeking out the cheapest email verification service might seem tempting, the most important thing to consider is its overall value for money.

Best Email Verifier Tools: Free and Paid

Now that we have established our criteria for what the best email verification services should offer, let’s examine the best email verification services in 2024.

ZeroBounce
MailerCheck
DeBounce
Clearout
Hunter
Kickbox
SpeedAccuracyInteration OptionsSecurityCustomer SupportUser RatingsAffordability
100,000 emails in 45 minutes Guaranteed 99% accuracy Over 55 supported platforms GDPR, SOC 2 Type 2, and PCI-compliant 24/7 Customer Support 4.65/5 from 2,330 reviews Free trial with every signup, pay-as-you-go payment scheme
Depends on different factors Guaranteed 98%+ accuracy Supports mainly email service providers SSL Encrypted and GDPR-compliant Email-only customer support 4.8/5 from 60 reviews Free 200 credits per sign-up, pay-as-you-go payment scheme
10,000 emails in 10 minutes Guaranteed 95%+ accuracy Supports 115 different ESPs and CRMs GDPR-compliant Email-only customer support with a standard turnaround time of 6 hours 4.7/5 from 1797 reviews Pay-as-you-go payment scheme
Depends on different factors Guaranteed 98%+ accuracy Hundreds of integration options from ESPs, CRMs, and Forms GDPR, SOC 2 Type 2, ISO-compliant 24/7 email and chat support 4.7/5 from 406 reviews Pay-as-you-go or subscription-based payment scheme, starting at $21
Depends on different factors 90-95% accuracy Integrates with common CRMs, ESPs, automation, and other third-party software GDPR-compliant and CCPA-ready Email-only customer support with a dedicated help center 4.5/5 from 1958 reviews Plans start at $34
Depends on different factors Guaranteed 99% accuracy Around 30 supported platforms GDPR-compliant Email and chat support 4.4/5 from 335 reviews Custom pricing depending on email list volume

1. ZeroBounce

100 free monthly credits upon signup

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ZeroBounce is hailed as the number one email verifier for over 300,000 business giants including Amazon, Netflix, and Disney. With an aggregate rating of 4.6 stars, our research indicates that ZeroBounce has a significant number of benefits, including its wide variety of features, prompt customer support, and efficient email-sending speed.

Zerobounce for email list verification

What truly distinguishes ZeroBounce from its competitors is its top-of-the-line verification accuracy, which guarantees a bounce rate of less than 1%. Aside from that, it has one of the most user-friendly interfaces among the email verification tools in this list.

When it comes to affordability, ZeroBounce offers both subscription-based and pay-as-you-go payment schemes. The former starts at $49 per month. As an added benefit, they also offer highly customizable monthly plans, allowing their clients to curate their subscriptions based on what particular services they need and only pay for the ones they use.

This makes ZeroBounce highly recommended for both seasoned marketers looking for quality service and for beginners looking for the best value for their money.

However, one potential downside that we and other users have observed is its limited integration options. This may affect the workflow and business processes of clients whose platforms ZeroBounce does not support.

👍🏼   Pros:
  • High verification accuracy
  • User-friendly interface
  • Customizable plans
  • Various payment options
  • Excellent 24/7 customer support
👎🏼   Cons:
  • Limited integrations
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2. MailerCheck

200 free credits to get started

MailerCheck has been making waves with its efficient list verification. In terms of accuracy and its ability to reduce bounce rates, this tool ranks second among the best email verifier tools in this list.

MailerCheck is the best email verification tools

As the sister platform to MailerLite, one of MailerCheck’s most distinguishable features is its automatic integration with MailerLite

Aside from this, however, many of its users are particularly satisfied with its prompt and professional customer support system, citing the quick turnaround times and knowledgeable expertise with which every query is handled.

However, its partnership with MailerLite can also be interpreted as a drawback. Among the other email verification tools in this list, MailerCheck ranks last in terms of integration options, supporting mainly email service providers. To that end, we highly recommend reviewing the list of its supported platforms before signing up for this platform.

In any case, MailerCheck also offers a pay-as-you-go payment scheme for email verification, starting at $0.01 per credit. The platform also provides 200 free credits upon sign-up so that clients can test out its email verification prowess.

👍🏼   Pros:
  • High accuracy rate
  • Reduces bounce rates
  • Integrates with MailerLite
  • Strong customer support
  • Pay-as-you-go option
👎🏼   Cons:
  • Limited integrations
  • Focused on ESPs
  • Partnership constraints

3. DeBounce

100 free credits

DeBounce offers a wide variety of email validation features, including spam-trap removals, syntax eliminator, catch-all domain checkers, and detailed reports on your email list health. One of its key features that differentiates it from the rest is its breakthrough anti-greylisting technology, which significantly garners better results.

Debounce is an email verification tool

Aside from this, we have observed that most users are highly receptive to its simple interface, easy-to-use processes, and diverse integration options. In terms of pricing, users have also commented on its affordability, as clients can verify 1,000 emails for only $5 through its pay-as-you-go payment scheme.

Some potential limitations observed are its accuracy and data storage. Compared to the other email address verification software in this list, DeBounce only guarantees a 95%+ accuracy rate. Furthermore, DeBounce only stores files on its platform for a maximum of seven days, which means that users may have to re-upload their data after the set time.

Nonetheless, DeBounce garnered an aggregate review of 4.7/5 stars across various review sites, making it one of the most reliable email validation software tools among marketers and business owners.

👍🏼   Pros:
  • Diverse validation features
  • Anti-greylisting technology
  • Simple, user-friendly interface
  • Affordable pricing
  • Diverse integrations
👎🏼   Cons:
  • Lower accuracy rate
  • Short data storage time

4. Clearout

100 free credits

Over 40,000 businesses worldwide trust Clearout as one of the best email validation software tools. Its services include email finding, verification, and even phone number validation.

Clearout is the best email list verification service

Furthermore, Clearout prides itself on its unique add-ons and extensions. For example, their Google Sheets add-on allows clients to run verifications directly on Google Sheets. Their verification system also guarantees an accuracy of 98%+, so clients enjoy the benefits of time efficiency and reduced bounce rates all in one service.

Clearout’s lead generation and prospect enrichment tools that use a variety of data scraping techniques also make Clearout stand out in this list. As such, it comes as no surprise that it is among the top-ranked email verification service tools, according to reviews, closely following DeBounce.

Still, a potential challenge in using Clearout is its price. For one-time payments, prices start at $21 onwards for 3,000 credits, which can be reduced if clients purchase a larger credit amount. This means this service is more recommended for larger-scaled companies with a substantial email list in order to maximize their return on investment (ROI).

👍🏼   Pros:
  • Trusted by many businesses
  • Email and phone validation
  • Unique add-ons/extensions
  • High accuracy rate
  • Efficient lead generation
👎🏼   Cons:
  • Relatively expensive
  • Better for large companies

5. Hunter

50 free credits once in 10 days

Hunter prides itself as an all-in-one email outreach platform with a clientele that includes Adobe, Microsoft, and Canva. Similar to the core features of the best email verifier software on this list, Clearout offers email verifying and campaign reporting.

Hunter is a fine email verification tool

What differentiates Hunter from its competitors is its emphasis on lead generation and email finding. Through its bulk domain search and browser extension features, finding professional email addresses and potential leads is a simple, time-saving process. It’s for this reason that Hunter can be found on the top of our list as far as email finding is concerned.

Aside from this service, users are also quick to praise its user-friendly interface, ease of implementation, and prompt email customer support.

However, one drawback of using Hunter is its accuracy. With only a 90-95% accuracy rate, some users have reported higher bounce rates compared to the other email verifying software tools on this list. In other words, we recommend Hunter for professionals who are more interested in lead generation and email finding than those looking for accurate email verification.

Its plans and pricing can be quite expensive as well, especially in comparison to the other software tools in this list. The starting plan, which includes 500 monthly searches and 1,000 monthly verifications, is currently priced at $34. However, this already includes integration options, campaigns, and the unlimited addition of team members.

👍🏼   Pros:
  • All-in-one outreach platform
  • Effective lead generation
  • User-friendly interface
  • Supports all Gmail features
  • Prompt customer support
  • Good integration options
👎🏼   Cons:
  • Lower accuracy rate
  • Higher bounce rates
  • Relatively expensive plans

6. Kickbox

First free 100 verifications (credits)

Polishing off our list is Kickbox, whose accuracy rate ranks second best on our list at 99%. At 4.5 stars, Kickbox does have the lowest rating in this list of the best email verifying software—but this ranking is still impressive compared to the hundreds of email validation software tools in the market.

Kickbox is an email list verification tool

Its significant advantages include its high verification accuracy and speed, flexible pricing, and integration options. Users can also enjoy a unique feature in Kickbox, which uses both API and drag-and-drop tools to verify its emails—individually or in bulk.

The main drawback observed when using Kickbox is its steep pricing. Although it offers a custom, pay-as-you-go payment scheme that can be friendlier for limited budgets, its price per credit can still be a downside compared to the more affordable alternatives in this list.

Nevertheless, Kickbox is still a great option for companies that require accuracy and data security. We also recommend this tool for beginners who are looking for clean, intuitive interfaces.

👍🏼   Pros:
  • High accuracy rate
  • Fast verification speed
  • Flexible pricing options
  • Diverse integration options
  • User-friendly tools
👎🏼   Cons:
  • Steep pricing
  • High cost per credit
  • Lower user rating

Final Thoughts

Finding the best email verification software for your business requires thorough research and planning, given the costs involved and the time that can be saved through using them. Fortunately, most of the tools in this list offer free trials or free credits upon sign-up. Don’t be afraid to take advantage of these so you can experience a tool’s features firsthand.

At the end of the day, the best email validating tool should fit your marketing goals and help you achieve them with the fastest, most accurate, and most secure methods within your budget.

Related articles

  1. Best Free Email Checkers
  2. How to Improve Email Deliverability

Best Email Verification Tools - FAQs

To verify an email address without sending an email, you can use specialized email verification services that check the validity of an email address by performing checks like domain verification, syntax checks, and mailbox validation. These services ensure the email is deliverable without sending a message to the inbox.

Most verification services require payments in exchange for their services but as a rule they offer a certain number of free credits (verifications) to start with. Usually it is 100 credits. There are websites that provide you with a possibility to verify your email (usually single email verification) for free; however, we'd recommend to be careful with sites alike as they might be created by spammers or associated entities.

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