Marketing is a numbers game, but if you send out thousands of emails to dud email addresses, you could be wasting your precious marketing dollars. The solution: an email verification service.

The Best Email Verification Tools on the Block

Chances are you have done your homework and chosen the best email marketing service for your business. However, if you hand over your list of hard-earned email addresses, the results your marketing company comes back with could be less than stellar unless you first clean those lists with an email verification tool.

There are some excellent email verification tools you can use to clean your email addresses and ensure deliverability of the final list. These tools use domain/MX records, email syntax checks, disposable email address (DEA) detection, spam trap identification, and blacklists to verify email.

We have narrowed down the long list of email verification services so you can make your choice quick and easy.

  1. ZeroBounce
  2. DeBounce
  3. Email List Verify
  4. NeverBounce
  5. MyEmailVerifier

1. ZeroBounce

ZeroBounce is on everyone’s list of the best email verifier. The cloud-based service uses AI to remove invalid emails and score each remaining with a validation score. Using the service, you can gather additional information about each email recipient, such as full name, geolocation, gender, IP address, and more. End users give ZeroBounce a high 4.5-4.7 score out of 5 in all areas.

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Using ZeroBounce, you can easily upload your entire customer list or test a single email address. The AI component scores each email with a validity score, and you can decide which to keep and which to remove, increasing your click rate in the process.

The free plan is very sparse, offering only 100 addresses. However, the subscription plans are pretty affordable ($16/month for 2000 email verifications). Another bonus is that ZeroBounce integrates nicely with email platforms and other programs like Google Sheets, Asana, and AutoPilot. Using the real-time API will validate email addresses on the fly as you add them. ZeroBounce is overall a great bang for the buck.


  • Bulk or single email verification options.
  • Integrates with many popular platforms.
  • Real-time API is available to verify as you go.
  • Fills in customer data for email addresses with missing information.
  • Free plan if you don’t need to verify many.

⛔️ CONS:

  • Limited free plan (100 emails/per month).

2. DeBounce

DeBounce is an email verify service that users seem to like quite a bit. Just about everyone agrees that it is super easy to use and affordable. Some clients boast of uploading 50,000 email addresses, and in under 40 minutes, they have a clean list of recipients that are still legitimate years later. There are some complaints about the API, however.

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DeBounce uses a powerful data engine to retrieve details about each email account and supplies you with names, helping you to personalize your email messages and target market, specific groups. The service has an API, although some users complain that the functionality could be better. It also has a WordPress plugin to use on your website and a JavaScript widget for forms. They also boast of anti-greylisting technology, spam-trap removal, syntax eliminator, MTA validation, and domain confirmation.

The service is very affordable and competitive with other services allowing you 5,000 verifications for just $10/month. They have pricing plans that go all the way up to 5 million verifications per month. If your company is looking for a high-volume, affordable service, DeBounce is an excellent option.


  • Simple, clean, easy-to-use interface.
  • Works well for large batches.
  • Affordable.
  • Integrates with dozens of apps.

⛔️ CONS:

  • Results sometimes strip out data columns you included in your upload.
  • Weak API capabilities.

3. Email List Verify

Next in our lineup is EmailListVerify, another service dedicated to validating email lists to ensure quality leads for marketing purposes. Email Verify calls itself a “full-featured email verification service but at half the price.”

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Users like this service although it ranks slightly lower than the previous two options. The service includes syntax error checker, domain and SMTP validation, spam trap checker, hard bounce checking, and MTA validator. The service will also remove duplicates automatically, which is a helpful feature.

The service has “pay-as-you-go” plans and monthly subscription plans. They also offer a free plan which is limited to 100 email verifications. For $139/month, you can process 5,000 email verifications per day. That’s a lot making this service really good for marketing companies who do a huge volume. The pay-as-you-go plan averages about 1,000 emails for $4.

EmailListVerify gets the nod from some very respectable online platforms such as MailChimp, Shopify, and Rackspace, which use it for their own verifications. Some users complain about the accuracy, refunds, and UI. You will have to decide for yourself if this service works for you.


  • Free account.
  • Upload various formats (XLS, CSV, TXT, etc.).
  • Removes duplicated automatically.
  • Removes invalid, inactive, and parked email accounts.
  • Bulk processing.
  • API for web-based contact forms.
  • Many useful integrations.

⛔️ CONS:

  • Free account is limited to 100 email verifications.
  • Confusing interface for some users.
  • Complaints about refunds and accuracy.
  • Spam traps a bit buggy.

4. NeverBounce

NeverBounce is a real-time email verification and email cleaning service that works for large and small businesses. Using an API, JavaScript Widget, Webhook, or Dashboard, you can check a single email address or large batches at once. You can also integrate NeverBounce with just about any platform making it quick and efficient to check each new address as you work.

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One nice feature is the instant metrics showing the bounce analysis in real-time. The company boasts on its website of more than 125,000 customers using the service. They make the system easy to use, upload, verify and clean, and download a clean list.

You can code NeverBounce into any website using various languages and hooks such as cURL, NodeJS, PHP, Python, Ruby, Go, Java, and .NET. They also pride themselves on excellent customer service. Some big-name players like Uber, Dell, Girl Scouts, QuickenLoans, and Harvard Medical School use NeverBounce to clean and verify their lists.

NeverBounce also uses the pay-as-you-go or monthly billing options. The pay-as-you-go choice costs $0.003 per email for up to 1,000,000 emails. They also offer Enterprise pricing for companies needing more.


  • Automatic removal of duplicates and high-risk emails.
  • Real-time analysis and verification.
  • Integrates with almost any platform (80+).
  • Great customer service.
  • Free trial.
  • Bulk or single real-time email verification/cleaning.

⛔️ CONS:

  • Can only upload and download lists in CSV format.
  • Only two packages Pay-As-You-Go and Enterprise.

5. MyEmailVerifier

MyEmailVerifier is another up and comer in the email validation game. They don’t have nearly the same customer base as others (claiming about 10,000+ users), but they have very similar features and a free account with 100 credits to use.

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MyEmailVerifier guarantees 98% deliverability with cleaned emails, and they are GDPR compliant. Their pricing model works on prepaid credits and starts at 500 credits for $1.44. You can go up to 5 million credits for $1,800. However, you can also use discount codes to make it even more affordable.

The service automatically finds disposable and catchall email addresses and discards them along with spam traps and other undeliverable addresses. Customers rate them overall in the 4.4-4.8 out of 5 range. This one is definitely worth a try.


  • Free trial to use.
  • Discount codes are available.
  • 98% deliverability guarantee.
  • Excellent accuracy rating.
  • Quick turnaround time.
  • GDPR compliant.

⛔️ CONS:

  • Free trial is limited to 100 credits.
  • Not as large or well known as other competitors.
  • Limited integrations.

The Bottom Line

When shopping for the best email verification tool, the choices can be overwhelming. Use the handy list above to make that job easy and select the best email verification service for the best price and improve your marketing efforts big time!