15 Best Email Checker Tools In 2024

Struggling with email bounces and frustrated recipients? It's time to take control. This guide unveils the 15 best email checker tools to scrub your list clean and maximize campaign performance in 2024.

What is an Email Checker?

An email checker, also known as an email verifier, is a tool that helps validate email addresses. It essentially checks whether an email address is real and can receive emails. These tools are widely used by businesses, marketers, and individuals to ensure that their email lists contain valid, active email addresses, which helps improve email deliverability rates, reduce bounce rates, and maintain a good sender reputation.

Why Email Checkers Are Important:

  • Improved Deliverability: Bouncing back due to invalid emails can hurt your sender reputation. Email checkers help ensure your emails reach intended recipients, boosting your deliverability rates.
  • Better List Hygiene: Maintaining clean email lists is crucial for email marketing success. Email checkers help remove invalid or outdated addresses, keeping your lists healthy and improving your "email list hygiene."
  • Increased Engagement: By ensuring emails reach real people, you can expect better open rates and overall campaign performance.

How Email Checkers Work:

Email checkers employ various methods to verify email validity. Here's a simplified breakdown:

  • Syntax Check: The checker verifies the email address format (e.g., email@example.com).
  • Domain Check: It confirms the existence of the domain name associated with the email address.
  • MX Record Check: Mail Exchanger (MX) records route emails to the correct server. Email checkers verify the presence of valid MX records for the domain.

What to Look Out for When Choosing an Email Checker Tool

  • Accuracy: Aim for a tool with a high success rate (over 95%) to ensure you're only sending emails to valid addresses.
  • Speed: Consider how many email addresses you need to verify at once and choose a tool that can handle your volume efficiently.
  • Pricing: Look for a plan that fits your budget without sacrificing quality.
  • Ease of Use: Make sure the tool integrates well with your existing email marketing and CRM tools.
  • Customer Support: Choose a service with a reliable support team to assist you if you have any questions.
  • Security: Pick a tool that complies with data protection regulations to keep your information secure.

List of Top 15 Email Checker Tools

Here is our list of the top 15 email checker tools that have proven to be reliable and efficient:

1. Distrobird

Although it is not an email verification tool, Distrobird is a sales automation tool that goes the extra mile by automatically validating every email address you import. This ensures you are only reaching real inboxes, not bouncing off into the void.

Distrobird's built-in email validation is like a built-in GPS for your email marketing. It ensures your messages reach their intended destination, maximizing the impact of your campaigns.

  • Features: Standout features include data enrichment, contact management, cloud call center, form tracking, block list, unified inbox, Office 365, Gmail, custom SMTP inbox sync, campaign exclusions, and scheduled campaigns.
  • Integrations: HubSpot, Gmail, Stripe, Microsoft Outlook, Twilio, Zapier, Clearbit, Zoho, Telnyx, Salesforce and NGP VAN.
  • Pricing: Distrobird offers a free plan for core features like voice calls, email sequences, and shared inboxes. Paid plans cater to growing businesses, with options starting at $8 per month for the Unified Inbox and $25 per month for Sequences and Voice features.

2. ZeroBounce

ZeroBounce is a leading email validation system that ensures that companies send complex and high-volume emails and avoid deliverability issues. It removes all invalid email addresses to prevent bounces and preserve the sender's reputation.

Key Features

  • Bulk Verification: Upload large lists for quick email address validation.
  • Real-time Verification: Integrate with marketing platforms to verify email addresses during signup.
  • Email Scoring: Get insights into the deliverability potential of each address.
  • Email Finder: Discover new leads or reconnect with lost contacts by searching for valid business emails.

ZeroBounce Pricing: You can buy credits in bulk for $15 (2,000 credits). They also offer a pay-as-you-go option at a rate of $0.0075 per credit.

ZeroBounce Pros:

  • It offers an analytics and reporting feature on account activity.
  • It has a high accuracy rate of 97%.
  • Offers API access.
  • Bulk and single email checker.

ZeroBounce Cons:

  • The price is higher compared to other tools in the market.
  • It has issues with some integrations.
  • It has limited customization with the free plan.

3. MailerCheck

MailerCheck is an all-in-one email deliverability platform that helps businesses optimize their campaigns and email configuration. It offers various integrations and automated daily cleanups to keep your email list tidy and spam-free.


MailerCheck goes beyond basic checks, offering features like:

    • Syntax Checks: Validates proper email address formatting.
    • Blacklist Scans: Compares your list against known spam traps.
    • MX Record Verification: Confirms valid mail exchange records.
    • SMTP Ping: Verifies active email addresses.
  • Real-time Verification: Integrate MailerCheck with your signup forms to verify emails as users subscribe.
  • Email Content Analysis (Optional): Analyze email content to identify potential spam triggers and optimize rendering across devices.

MailerCheck Pricing:

  • Free trial available
  • Pay as you go: You can purchase credits for email verification, with 1 credit equaling 1 email verification. The price starts at $10 for 1,000 credits, which comes down to $0.01 per credit.

MailerCheck Pros:

  • It has a flexible pricing model.
  • Customer support is responsive.
  • It is integrated with a good number of email platforms.

MailerCheck Cons:

  • It does not offer detailed reports.
  • No free trial feature to see what you are working with.
  • Doesn’t allow users to roll over contact from the previous month.

4. MillionVerifier

MillionVerifier is a cloud-based email verification solution, which helps businesses authenticate email lists through syntax and domain existence checking.


MillionVerifier employs various techniques to ensure email validity, including:

    • Syntax Checks: Verifies proper email address formatting.
    • Catch-All Detection: Identifies email addresses that accept all incoming messages (less reliable).
    • Disposable Email Address Detection: Flags temporary or disposable email addresses.
    • MX Record Verification: Confirms valid mail exchange records for smooth email delivery.
    • Spam Trap Detection: Compares your list against known spam traps to protect your sender reputation.

MillionVerifier Pricing:

  • Pay-as-you-go: Get 10,000 credits for a one-time price of $37. These credits never expire and can be used for various features like email list cleaning and API access.
  • Monthly subscription: Pay $15 per month to verify up to 10,000 emails daily with the option to purchase additional credits for increased volume.

MillionVerifier Pros:

  • It offers a spam protection feature.
  • List bulk verification option.
  • It has budget-friendly plans.
  • Temporary/disposable email detection.

MillionVerifier Cons:

  • It lacks some advanced features that could enhance your email marketing efforts.
  • Catch-All detection might not be entirely accurate.
  • Customer support isn’t very responsive.

5. Hunter

Hunter is a cloud-based email search solution that helps businesses find and verify professional email addresses from domains, companies, or specific professionals on the web.


  • Domain Search: Enter a company domain and Hunter searches for valid email addresses associated with that website.
  • Social Media Integration: Find email addresses linked to social media profiles like LinkedIn.
  • Chrome Extension: Integrate Hunter with your Chrome browser for on-the-go email address discovery.
  • Bulk Email Finder (Paid Plans): Find multiple email addresses at once for targeted outreach.

Hunter Pricing:

  • Free: Basic search functionality (limited)
  • Starter ($34/month): More searches & verifications, ideal for small teams
  • Growth ($104/month): Increased limits, perfect for growing teams
  • Business ($349/month): High volume capabilities, best for large teams

All plans allow unlimited team members and have yearly search and verification limits.

Hunter Pros:

  • It allows cold emailing.
  • Provides accurate contact information.
  • Its extension to Chrome is great.
  • The user interface is simple.

Hunter Cons:

  • Pricing is a bit expensive.
  • Its mail verifier tool can't verify webmail addresses (like @gmail or @yahoo).

6. Bouncer

Bouncer is an email validation service with deliverability features designed for strong coverage and performance.


  • Real-time Verification: Integrate Bouncer with signup forms to verify emails as users subscribe.
  • Email Insights (Optional): Analyze email content for potential spam triggers and optimize rendering across devices.
  • API Integration: Integrate Bouncer with your email marketing platform for automated verification.

Bouncer Pricing:

Pay-as-you-go email verification:

  • Minimum purchase: 1,000 credits ($8)
  • Price per email: starts at $0.008 (discounts for higher volume)
  • Larger volumes? Contact for custom pricing.

Bouncer Pros:

  • It offers bulk and single email verification.
  • It integrates with popular ESPs.
  • It is easy to use.
  • Boosts sender reputation & engagement
  • Streamlines workflows (API)

Bouncer Cons:

  • The user interface is often slow.
  • Costly for large lists (compared to some)
  • Limited free trial
  • Advanced features in higher tiers

7. Clearout

Clearout is an email list, verification, and email finder tool. It works towards expanding the user’s reach, lowering hard bounces, and improving deliverability rates.


  • Multi-step Verification: ClearOut employs various checks to ensure email validity, including syntax checks, spam trap detection, and MX record verification.
  • Real-time Verification (Optional): Integrate ClearOut with signup forms to verify email addresses as users subscribe.
  • Detailed Reporting: Gain insights into the verification process with reports on bounce rates and overall list quality.

Clearout Pricing:

  • Pay As You Go or Subscribe (20% discount): Buy credits for email verification, finder, or prospecting.
  • Starts at $21 (varies by quantity).
  • Free Trial (100 Credits): Try Clearout before you buy.
  • Credits Used:Email Verify: 1 credit/emailEmail Find: 2-4 credits/email (depending on type)Prospect: 2-4 credits/email + 2 credits/phone number (depending on type)

Clearout Pros:

  • It provides guaranteed deliverability.
  • It offers seamless integrations with ESPs and CRMs.
  • It offers team accounts and analytics.

Clearout Cons:

  • It has a steep learning curve.
  • Pricing structure might be complex for users with fluctuating verification needs.
  • Data is not saved for a long period.

8. NeverBounce

NeverBounce is a user-friendly and secure email checker tool with a focus on basic email list hygiene and deliverability. It is an email verification solution that enables enterprises, startups, and nonprofit organizations to remove duplicate emails, detect threats, and verify email lists.

NeverBounce Reviews & Pricing 2024


  • Multi-level Verification: NeverBounce utilizes various checks, including:
    • Syntax Checks: Validates proper email address formatting.
    • Catch-All Detection: Identifies email addresses accepting all messages (less reliable).
    • Spam Trap Detection: Compares your list against known spam traps.
  • Real-time Verification: Integrate NeverBounce with signup forms to verify emails as users subscribe.
  • Deliverability Predictions (Optional): Analyze email content to predict potential spam triggers and improve inbox placement.

NeverBounce Pricing:

  • Free trial available
  • Up to 10,000 emails: $0.008/email
    Up to 100,000 emails: $0.005/email
    Up to 1,000,000 emails: $0.003/email

NeverBounce Pros:

  • It offers bulk and single email verification.
  • It integrates with popular ESPs.
  • It has a user-friendly interface.

NeverBounce Cons:

  • Users often report that the bounce rate may be high.
  • Costly for very large email lists compared to some competitors.
  • Limited free trial options compared to some services.
  • Deliverability predictions might require higher-tier plans.

9. Kickbox

Kickbox is an email verifier that uses both API and drag-and-drop to verify emails.


  • Multi-level Verification: Kickbox utilizes various checks to ensure email validity, including syntax checks, spam trap detection, and MX record verification.
  • Real-time Verification: Integrate Kickbox with signup forms to verify email addresses as users subscribe.
  • User-Friendly Correction: Kickbox allows users to correct typos on their email addresses directly within the signup form, boosting conversion rates.

Kickbox Pricing:

  • Free for up to 100 emails
  • Prices start at $5 for 500 verifications

Kickbox Pros:

  • It offers bulk and single email verification.
  • It has flexible pricing options.
  • There are a lot of integration options.
  • High accuracy and speed in email verification.

Kickbox Cons:

  • Customer support is poor and often unresponsive.
  • Pricing might be higher than some basic verification services for small-scale needs.
  • Free plan limitations might restrict access to advanced features.

10. Verifalia

Verifalia is a cloud-based email verification tool that cleans your email lists from invalid emails, duplicates, bounces, and more.

Key Features:

  • Bulk Verification: Upload large email lists for efficient verification.
  • Real-time Verification: Integrate with signup forms to verify emails as users subscribe.
  • Multi-level Checks: Identifies invalid addresses, spam traps, and risky emails like disposables.
  • International Support: Verifies emails with non-Latin alphabets for global reach.
  • Seamless Integrations: Connects with various CRMs, email marketing tools, and more for a streamlined workflow.

Verifalia Pricing:

  • Free: 25 daily credits, 1 user (limited features)
  • Starter ($9): 250 daily credits, 5 users, basic protection.
  • Pro ($49): 1250 daily credits, 100 users, advanced features.
  • Enterprise ($199): 6250 daily credits, 1000 users, more features.
  • Ultimate ($499): 25000 daily credits, 5000 users, all features.

Verifalia Pros:

  • It offers an affordable and flexible pricing model.
  • It integrates with various email platforms.
  • It has an AI-powered algorithm that identifies and highlights toxic addresses.
  • It enables you to run bulk and single email verification.

Verifalia Cons:

  • Pricing is on the higher side for larger lists.
  • Limited free trial options compared to some competitors.
  • It often does not generate detailed reports.

11. Mailfloss

Mailfloss is an email checker with a strong focus on automation and deliverability. It automatically connects to your email service provider and cleans your email lists every day without manual intervention.

Key Features:

  • Automatic Daily Cleaning: Set it and forget it! Mailfloss automatically cleans your email lists daily, removing invalid addresses and preventing decay.
  • Multi-level Verification: Ensures email validity with checks for syntax, spam traps, disposable addresses, and more.
  • Real-time Verification: Verify email addresses instantly during signup with form integrations.
  • Actionable Reporting: Gain insights into verification results with detailed reports and analytics.
  • Customization Options: Choose the level of cleaning intensity and set exclusions for specific categories.

Mailfloss Pricing:

  • Free Trial: Try Mailfloss free for 7 days on all plans.
  • Lite ($25): 10,000 credits, basic features, 1 ESP integration
  • Business ($57): 25,000 credits, more features, 10 ESP integrations
  • Pro ($200): 125,000 credits, all features, unlimited ESP integrations

Mailfloss Pros:

  • It automatically removes invalid emails including typos and hard bounces.
  • It seamlessly integrates with various ESPs, streamlining the verification process and reducing manual work.
  • Customer service is responsive.

Mailfloss Cons:

  • It may lack some advanced features.
  • Daily automated cleaning might not be suitable for all businesses (customizable scheduling might be preferred).
  • It does not offer detailed reports or statistics.

12. EmailListVerify

EmailListVerify is an email verification tool that helps you improve the deliverability and performance of your email marketing campaigns. It uses a range of techniques such as syntax error validation, email duplicate removal, SMTP validation, etc.

Key Features:

  • Bulk Verification: Upload large email lists for efficient verification.
  • Real-time Verification (Optional): Integrate with signup forms to verify emails as users subscribe.
  • Multi-level Verification: Identifies invalid syntax, spam traps, disposable addresses, and more.
  • Duplicate Removal: Eliminate duplicate email addresses from your list.
  • Easy-to-Use Interface: User-friendly platform simplifies the verification process.

EmailListVerify Pricing:

  • Free trial available
  • Prices start at $4 for 1,000 emails.
  • Higher volume unlocks lower per-email cost

EmailListVerify Pros:

  • Real-time verification through an API integration.
  • It is easy to use and delivers accurate results.
  • Affordable pricing structure with a free plan and flexible options.
  • Comprehensive verification process improves deliverability.

EmailListVerify Cons:

  • Free plan limitations might restrict verification needs for larger businesses.
  • Limited information available on specific features compared to some competitors.
  • May lack advanced features like decay protection or automated cleaning offered by other services.
  • It does not have an analytics dashboard.

13. Emailable

Emailable is a user-friendly tool that works well for email validation. It is simple and easy to use and it offers over 50+ integrations.


  • Email Verification: Emailable employs various checks to identify invalid addresses, spam traps, and risky emails.
  • Email List Segmentation: Sort your email list based on different criteria like verification status, domain, or engagement data (requires integration with your ESP).
  • Real-time Verification: Integrate Emailable with signup forms to verify email addresses as users subscribe.
  • Actionable Insights: Gain insights into list quality with reports on bounce rates, invalid categories, and deliverability predictions.
  • API Integration: Connect Emailable with your marketing tools for automated workflows.

Emailable Pricing:

  • Credits: Starts at $0.00646 (5K+ credits) for bulk, API, widget use.
  • Monthly Plan: Save with $32.30/month + 5K credits.
  • Free Trial: Try it before you buy (no monthly fees).

Emailable Pros:

  • It has a flexible pricing structure.
  • It allows the sorting of email addresses into multiple categories, which makes it easy for marketing teams to plan campaigns.
  • Customer support is responsive.

Emailable Cons:

  • Segmentation features might require integration with your Email Service Provider (ESP).
  • It does not offer advanced features like other tools.

14. 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 Pricing:

  • Free Trial (No Card Needed): Test drive Lemlist for 14 days.
  • Pay Monthly: Starts at $39/user with basic features & 100 verification credits/month.
  • Higher Tiers: Unlock advanced features like LinkedIn outreach & calling at higher price points (more credits included).

Lemlist Pros:

  • High accuracy rate in identifying valid email addresses.
  • Seamless integration with LinkedIn, allowing users to extract LinkedIn information.

Lemlist Cons:

  • Integration with some third-party tools may require additional setup.
  • Some advanced features are only available on higher-tier plans.

15. 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.

ZoomInfo Pricing:

  • Get a Quote from Sales

ZoomInfo Pros:

  • Integrates easily with various CRM and sales platforms.
  • Customer support is reliable.

ZoomInfo Cons:

  • The user interface isn’t very great.
  • Filters don’t always work.

Ready to Find the Right Email Checker?

With a variety of email checker options available, both free and paid, you can find a solution that fits your needs and budget. Consider factors like list size, verification depth, and desired features when making your choice. Remember, a good email checker can be a game-changer for your email outreach efforts.

Bonus Tip: When searching for an email checker, explore options offered by your existing, sales automation platform, email marketing platform or CRM software. They might integrate verification functionality, saving you time and streamlining your workflow.

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