8 Best Handpicked Email Verification Tools for 2024


In today's digital landscape, email is pivotal for business communication, especially for outbound and B2B sales. Yet, the success of an email campaign extends beyond just crafting compelling messages—it's crucial to ensure emails actually reach their targets. Email verification tools are essential for sales and marketing professionals focused on boosting email deliverability and preserving their email list's integrity.

The Importance of Email Verification

At its core, email verification is the process of checking whether an email address is valid, deliverable, and free from errors. This process helps in significantly reducing bounce rates, improving your sender reputation, and ensuring that your messages reach your target audience. The implications of this are profound: by maintaining a clean email list, businesses can achieve higher engagement rates, better conversion rates, and, ultimately, a more successful email marketing campaign.

Why This Listicle?

Given the plethora of email verification tools available in the market, choosing the right one can be a daunting task. This listicle is designed to demystify the process by presenting you with a curated selection of the best email verification tools for 2024. We read through all the G2 reviews for 25+ email verification tools and then hand-picked these 8 tools.

Whether you're a seasoned sales professional or just starting out, this guide aims to provide you with comprehensive insights into each tool's features, benefits, and pricing, helping you make an informed decision tailored to your specific needs.

What is an Email Verification Tool?

In the digital age, the integrity of your email list is crucial to the success of your outreach efforts, especially for outbound and B2B sales professionals. At its core, an email verification tool is a service or software designed to ensure that the email addresses in your list are valid, deliverable, and free of errors. This is not just about weeding out invalid emails; it’s about enhancing the effectiveness of your communication strategy.

Functionality Explained: How do these tools achieve this? By checking each email address against a series of validation criteria. This process includes syntax checks (to ensure the email follows standard email format), domain verification (to verify the domain exists and can receive emails), and even SMTP authentication (to check if the mailbox exists without actually sending an email). Some advanced tools go further, assessing the quality of the email address based on engagement and activity metrics.

The goal is simple yet profound: to improve email deliverability. This means reducing the bounce rate of your campaigns and ensuring that your messages reach the intended inbox. By doing so, not only do you enhance your sender reputation with email service providers, but you also increase the likelihood of engaging with your target audience effectively.

In sum, email verification tools are indispensable for anyone relying on email marketing or outreach as a primary communication channel. They ensure that your efforts, time, and resources are not wasted on undeliverable addresses, allowing you to focus on crafting messages that resonate with your audience.

Curated List Of Email Verification Tools

Diving into the details of each selected email verification tool, we aim to provide a comprehensive overview focusing on the tool's core features, strengths, pricing, and suitability. Let's begin with a closer examination of one of the highly rated tools based on our comparison.


Dropcontact is a powerful SaaS solution designed to find, verify, and enrich B2B contacts. It streamlines data management by automatically centralizing information about prospects.

Purpose: B2B contact enrichment, cleaning, and correction directly within CRMs.

Method: Proprietary algorithms and test servers.

What G2 Reviews for Dropcontact tell us?

We reviewed all 36 reviews available on G2 for Dropcontact and found the following strengths and weaknesses.


  • GDPR Compliance: Dropcontact is highly regarded for its strict adherence to GDPR regulations. Users appreciate the tool’s commitment to data privacy and security.
  • Efficient Contact Enrichment: The accuracy of contact details, including email addresses and phone numbers, stands out. Users find it valuable for lead generation and CRM data enhancement.
  • User-Friendly Interface: Dropcontact’s intuitive design makes it accessible to both technical and non-technical users. The straightforward process of finding and verifying contacts simplifies workflows.


  • Integration Limitations: Some users mention limitations in integrating with specific platforms. For instance, improvements are desired for selective enrichment within HubSpot.
  • LinkedIn Profile Reliability: While Dropcontact provides LinkedIn profiles, occasional reliability issues have been reported. Users hope for further enhancements in this area.
  • Selective Enrichment Options: Users express a desire for more granular control over selective enrichment. Currently, the tool lacks the ability to selectively enrich specific contacts within a list.

Dropcontact excels in GDPR compliance, ease of use, and accurate contact data. However, you should check if your required integrations are available, and given Dropcontact's low reliability, you may need to use another vendor for LinkedIn profiles.


Pay-as-you-go pricing starts at 29 Euro for 1000 email searches.


ZoomInfo offers a comprehensive B2B database that enhances sales and marketing strategies through advanced email verification alongside lead and contact data enrichment. It provides real-time insights into businesses and decision-makers, facilitating targeted outreach and engagement. Ideal for B2B sales professionals seeking to streamline prospecting and improve data accuracy, ZoomInfo integrates seamlessly with various CRM and marketing platforms, ensuring a boost in overall productivity and campaign effectiveness.

What do the G2 reviews reveal about Zoominfo’s performance and user satisfaction?

We reviewed all the reviews available on G2 for ZoomInfo and found the following strengths and weaknesses.


  • Comprehensive Database: ZoomInfo Sales boasts a comprehensive database that provides detailed information on leads and prospects. This feature streamlines daily tasks and helps users identify qualified leads more efficiently.
  • User-Friendly Interface: Users appreciate ZoomInfo’s user-friendly interface, making navigating and utilizing the platform easier.
  • Frequent Data Refresh: ZoomInfo’s database is frequently refreshed, ensuring up-to-date insights and intelligence about companies and contacts.
  • Integration with Key Systems: ZoomInfo Sales equips go-to-market teams to close more deals effectively by integrating with other key systems (such as conversation intelligence, sales engagement, and data orchestration tools).


  • Limited Negative Reviews: While overall feedback is positive, there are some negative reviews related to specific features or experiences. However, these are relatively scarce.
  • Pricing: Some users find ZoomInfo’s pricing to be high, especially for smaller businesses or individual users.


ZoomInfo offers a range of pricing plans tailored to different needs. While exact pricing isn’t openly disclosed on their website, here’s an overview:

  • Professional Plan: This plan, which starts at around $8,000 per year, provides essential contact data, advanced company insights, and digital marketing solutions.
  • Advanced Plan: Priced at approximately $12,000 annually, it offers additional features beyond the Professional plan.
  • Elite Plan: The Elite plan costs around $40,000 per year for more comprehensive services.

Additionally, ZoomInfo provides add-ons and integrations to enhance your experience. Just to let you know, actual costs may vary based on factors like customization, user seats, and specific requirements.


Hunter.io is a powerful tool designed for professionals seeking to find and verify email addresses quickly. It offers a range of features including domain search, email verification, and a Chrome extension for easier outreach. Ideal for marketers, recruiters, and sales teams, Hunter.io helps streamline the process of connecting with potential leads by providing accurate contact information. Additionally, it supports bulk searches and API integration, enhancing efficiency for large-scale operations. With its straightforward interface and reliable data, Hunter.io is a valuable resource for anyone looking to enhance their email outreach strategies.

What do the G2 reviews reveal about Hunter's performance and user satisfaction?

We reviewed all the reviews available on G2 for Hunter and found the following strengths and weaknesses.


  • Ease of Use: Users find Hunter’s interface user-friendly, and the Chrome extension is particularly easy to use for finding emails.
  • Email Verification: The email verifier is praised for its accuracy and usefulness.
  • Efficient Prospecting: Hunter is commended for its speed and reliability in finding professional email addresses, aiding in sales and marketing efforts.


  • Limited Social Media Integration: Some users noted the lack of direct extraction of email addresses from social media platforms like LinkedIn or Twitter.
  • User Experience: A few users mentioned that the user experience could be improved, such as making organization names and logos clickable.
  • Reduced Free Credits: There’s a mention of the reduction in the number of free credits available over the years, which affects the tool’s accessibility.


Hunter.io offers flexible pricing plans to suit different needs, starting with a free tier that includes 25 monthly searches and verifications. Paid plans begin at $49/month for 500 searches and verifications, scaling up to $399/month for 30,000 searches. Each tier offers additional features like priority support and more team accounts.

For users with custom needs, Hunter also provides a tailored Enterprise plan with dedicated support. All plans allow access to Hunter's core features, including domain search, email finder, and verification tools.


DeBounce is an email verification service designed to reduce bounce rates and enhance email deliverability. It offers real-time verification, disposable email detection, and spam trap removal. DeBounce supports bulk list cleaning and API access for seamless integration with other platforms. Suitable for businesses of all sizes, it ensures email marketing campaigns reach genuine users, improving overall engagement and sender reputation. The service is user-friendly, with a focus on accuracy and reliability in maintaining clean email lists.

What do the G2 reviews reveal about DeBounce's performance and user satisfaction?

We reviewed all the reviews available on G2 for Debounce and found the following strengths and weaknesses.


  • High Accuracy: Users appreciate the precision in email verification, with a notable reduction in bounce rates.
  • User-Friendly: The interface and process are described as simple, easy to use, and quick to understand.
  • Customer Service: Fast and effective customer support is frequently mentioned.
  • Affordable Pricing: Many users find the pricing optimal and appreciate the value for money.


  • Credit System: Some users expressed a desire for a monthly subscription option instead of the credit system.
  • Integration Issues: There were occasional mentions of difficulties integrating DeBounce with other software or APIs.
  • Data Retention: A few users were concerned about the short 7-day retention period for files on the platform.
  • False Positives/Negatives: A minority of users noted that some valid emails were blocked, and some spam traps were not identified.

Overall, DeBounce is well-regarded for its core service of email verification, with suggestions for improvement in pricing models and software integration.


DeBounce offers tiered pricing based on the number of verifications, starting from $10 for 5,000 verifications to $1,500 for 10 million verifications. There's also a pay-as-you-go option for flexibility, without monthly subscriptions or hidden fees. For frequent users, subscription plans provide monthly credits at reduced rates, starting from $8/month for 2,500 verifications. All plans include full access to DeBounce's features, including bulk email verification, API access, and spam trap detection.


TrueMail is an email verification service that ensures high accuracy in validating email lists, effectively reducing bounce rates. It offers real-time verification, disposable email detection, and detailed reports on email status. TrueMail is designed for businesses aiming to improve their email marketing efficiency by maintaining a clean and verified email database. Its user-friendly interface and integration capabilities make it a reliable choice for enhancing email deliverability and preserving sender reputation.

What do the G2 reviews reveal about TrueMail's performance and user satisfaction?

We reviewed all the reviews available on G2 for Hunter and found the following strengths and weaknesses.


  • Ease of Use: The system is straightforward, simple, and provides quick results.
  • Bulk Verification: Allows bulk addition of email lists to check for inaccuracies and reduce bounce rates.
  • Integration: It connects easily with other programs, and the email verification process is effective.


  • Service Closure: An email notification indicates that TrueMail is shutting down its service.
  • Accuracy Issues: Some users report occasional low accuracy, with correct email addresses being shown as incorrect.
  • Technical Hiccups: Initial issues with Zapier authorization and difficulties integrating live verification with certain email collection tools.


TrueMail offers a range of pricing options for email verifications: a free plan for 100 verifications, and paid plans starting at $34/month ($500 yearly) for 5,000 verifications. Additional paid plans for the same number of verifications—5,000—include $69/month ($828 yearly), $139/month ($1668 yearly), and $279/month ($3348 yearly). These plans are designed to cater to various verification needs, offering flexibility and scalability for users.


NeverBounce offers real-time email verification and cleaning services, ensuring customer communication through accurate emails. It integrates with various platforms, provides easy list upload and verification, and connects with email providers for automated cleaning. New users get free credits for testing, and NeverBounce emphasizes consistent service and customer support.

Neverbounce doesn’t have any G2 reviews yet, but we found the following key features. 

They are the new kid on the block and may come at a better bargain.

Standout Features:

  • Real-time Email Verification: Over 125,000 users trust NeverBounce for their real-time email verification and cleaning services.
  • Integration with Platforms: The service offers easy integration with various favorite platforms to ensure seamless operation.
  • Email List Cleaning: NeverBounce provides the ability to verify and clean email lists for the perfect send, supporting uploads of any size and connection to over 85 integrations.
  • Customer Support: They pride themselves on consistent service and availability, emphasizing their responsive and proactive customer support.

These features aim to ensure that an email address, as the first line of communication with a customer, is accurate and effective.


Pay As You Go Rates for NeverBounce’s email verification service

  • For up to 10,000 emails: $0.008 per email.
  • For up to 100,000 emails: $0.005 per email.
  • For up to 250,000 emails: $0.004 per email.
  • For up to 1,000,000 emails: $0.003 per email.


MailerCheck offers a suite of tools to enhance email deliverability, including email verification, list maintenance, content testing, inbox placement prediction, real-time domain monitoring, and blocklist alerts. It’s designed to protect the sender's reputation and ensure emails reach the inbox with straightforward pricing and integration with multiple email platforms.

What do the G2 reviews reveal about MailerCheck's performance and user satisfaction?

We reviewed all the reviews available on G2 for MailerCheck and found the following strengths and weaknesses.


  • Ease of Use: Users find MailerCheck easy to implement and use, even for inexperienced users or interns handling initial setup.
  • Email Verification: The platform is praised for its ability to verify single emails or entire lists efficiently, improving deliverability and sender reputation.
  • Customer Support: Positive feedback on MailerCheck’s customer service being knowledgeable and helpful.


  • Feature Set: Some users feel the platform lacks certain features compared to competitors and invalidates more emails than necessary.
  • Educational Content: There’s a call for more educational materials explaining MailerCheck’s unique advantages over similar services like Bouncify or Neverbounce.
  • Subscription Flexibility: A suggestion for monthly subscriptions to allow the transfer of unused contacts to the next month.


Starts at $10 for 1000 email verifications.


ZeroBounce is a comprehensive email validation service designed to optimize inbox placement and open rates for email campaigns. It features real-time email verification, scoring, and deliverability tools that help clean email lists and uphold sender reputation. ZeroBounce offers 100 free monthly email verifications for users to test its capabilities, positioning itself as an essential partner for enhancing email marketing ROI.

What do the G2 reviews reveal about ZeroBounce's performance and user satisfaction?

We reviewed all the reviews available on G2 for ZeroBounce and found the following strengths and weaknesses.


  • Accurate Email Validation: ZeroBounce boasts a 99% accuracy rate in email validation, assisting in the removal of obsolete and risky email addresses. This contributes to lower bounce rates and a stronger sender reputation.
  • Email Finder: This feature enables the discovery of new, valid business email addresses, facilitating the expansion of B2B outreach efforts.
  • DMARC Monitor: Offers unlimited email monitoring, security alerts, and automated reporting to secure emails and guard against phishing scams.
  • Email Deliverability Tools: Provides a suite of customized tools aimed at boosting inbox visibility, including tests for email servers and inbox placement, alongside Email Finder and DMARC Monitoring services.
  • Activity Data & Email Scoring: Helps identify engaged email subscribers and provides deeper insights into email lists for improved campaign success.
  • Trusted by Major Companies: Utilized by leading corporations such as Amazon, Disney, Netflix, and Sephora, showcasing its reliability and effectiveness.
  • Security and Compliance: Ensures top-tier security with GDPR compliance, SOC 2 Type II, ISO-27001 certification, and full HIPAA compliance.


  • Pricing Transparency: There's feedback indicating a need for more transparent pricing details, suggesting that a clearer breakdown of plans and costs could improve user experience.
  • User Interface Enhancements: Some reviews have pointed out that the platform's user interface could be made more intuitive, suggesting that enhancements in navigation and design could further improve usability.


ZeroBounce's pricing model begins at approximately USD 20 for 2,000 emails, scaling effectively up to a million emails. This flexible pricing ensures that ZeroBounce can accommodate the needs of businesses of varying sizes, from small startups to large enterprises.