Best Email Verification Software - Page 8

How Many Email Verification Software Products Does G2 Track?

Total Products under this Category: 266

Category Stats (Nov 2026)

  • Average Rating: 4.56/5 (↑0.01 vs Oct 2026) The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: BounceZero (+19.06%) - Among all products in this category, BounceZero recorded the largest rating increase compared to last month

Last updated: November 01, 2026

How Does G2 Rank Email Verification Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 37,400+ Authentic Reviews
  • 266+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Email Verification Software

G2 Grid® for Email Verification Software plotting products by satisfaction and market presence

Highlighted products: GTM Workspace - Powered by ZoomInfo, ZeroBounce, Apollo.io, RocketReach, Clearout.io, Kickbox, Wiza, and Reoon Email Verifier.

Underlying data: [Grid® JSON](https://www.g2.com/categories/email-verification/grids.json?focus%5B%5D=gtm-workspace-powered-by-zoominfo&focus%5B%5D=zerobounce&focus%5B%5D=apollo-io&focus%5B%5D=rocketreach&focus%5B%5D=clearout-io&focus%5B%5D=kickbox&focus%5B%5D=wiza&focus%5B%5D=reoon-email-verifier)

Emails Checker

Email address verifier, or email checker, is a tool that can clean your email list from old or invalid emails. Sending emails to unverified email lists will lead to a high bounce rate and blocking of your email by ESPs.

Average Rating: 3.0/5.0

Total Reviews: 1

How Do G2 Users Rate Emails Checker?

  • Quality of Support: 6.7/10 (Category avg: 9.0/10)

Who Is the Company Behind Emails Checker?

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Emails Checker?

AI-generated summary from verified user reviews

Pros
  • Users value the ease of use of Emails Checker, especially for bulk email validation.
  • Users value the bulk email validation feature, praising its ease of use for efficient email management.
Cons
  • Users often face incorrect information from Emails Checker, leading to unreliable email verifications.

Email Verification API

Email Verification API enables users to check the validity and existence of email addresses, a crucial step in optimizing email marketing results and detecting suspicious email addresses. Aside from inspecting email addresses’ syntax to ensure that they conform to IETF standards, the API also checks for the existence of mailboxes and mail servers to make sure they can receive messages. The tool also specifies whether email addresses were created using disposable email services.

Average Rating: 4.5/5.0

Total Reviews: 1

How Do G2 Users Rate Email Verification API?

  • Quality of Support: 8.3/10 (Category avg: 9.0/10)

Who Is the Company Behind Email Verification API?

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About Email Verification API?

AI-generated summary from verified user reviews

Pros
  • Users value the accuracy of the Email Verification API, enhancing data quality with real-time verification capabilities.
  • Users value the real-time verification, enhancing data quality and ensuring more accurate email communications.
Cons
  • Users are frustrated with the limited free version of the Email Verification API, affecting accessibility and usage.

What Are Recent G2 Reviews of Email Verification API?

Email Verification Software

Prime Verifier is an AI-powered email verification platform that helps businesses validate emails with accuracy and scale. Verify single addresses, clean bulk lists, integrate via API, and automate list hygiene to improve email deliverability and data quality.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Email Verification Software?

  • Has the product been a good partner in doing business?: 10.0/10 (Category avg: 9.2/10)
  • Ease of Admin: 10.0/10 (Category avg: 9.3/10)
  • Quality of Support: 10.0/10 (Category avg: 9.0/10)

Who Is the Company Behind Email Verification Software?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Email Verification Software?

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How it works

Email Verifier

Email Verifier is an app that allows you to verify email addresses for your sales and marketing communications. All you have to do is upload your email list and let the app do all the hard work. After the verification process, you'll get a report stating which emails are valid and which are non-existent, catch-all or duplicated, and download the report.

Average Rating: 4.5/5.0

Total Reviews: 1

How Do G2 Users Rate Email Verifier?

  • AI Text Generation: 10.0/10 (Category avg: 7.5/10)

Who Is the Company Behind Email Verifier?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Email Verifier?

HTML Email Check

HTML Email Check and Validation Tool checks the markup (HTML, XHTML, CSS) of HTML emails and newsletters.

Average Rating: 4.5/5.0

Total Reviews: 1

How Do G2 Users Rate HTML Email Check?

  • Quality of Support: 8.3/10 (Category avg: 9.0/10)

Who Is the Company Behind HTML Email Check?

  • Seller: HTML Email Check
  • Year Founded: 2016
  • HQ Location: Hamburg, DE
  • Twitter: @htmlemailcheck
    720 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Large

What Do G2 Reviewers Say About HTML Email Check?

AI-generated summary from verified user reviews

Pros
  • Users confirm the accuracy and reliability of HTML Email Check for validating their emails effectively.
  • Users find the reliability of HTML Email Check impressive, confirming email validity with consistent accuracy.
Cons
  • Users experience inaccurate employee data in HTML Email Check, leading to potential communication issues.
  • Users often face update issues with HTML Email Check, hindering their email data accuracy and reliability.

What Are Recent G2 Reviews of HTML Email Check?

Impressionwise

Professional data hygiene service featuring a multi-layered approach to identify, validate and protect against a wide range of e-mail-based threats.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Impressionwise?

  • Quality of Support: 10.0/10 (Category avg: 9.0/10)

Who Is the Company Behind Impressionwise?

  • Seller: Impressionwise
  • Year Founded: 2008
  • HQ Location: Clearwater, US
  • Twitter: @Impressionwise_
    143 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    3 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Impressionwise?

What Are G2 Users Discussing About Impressionwise?

Linkwheelie

Export Your LinkedIn Search Results, Have The Data Of Those Leads Cleaned & Formatted, Enrich Them With 100% Valid And Verified Emails ,

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate Linkwheelie?

  • Quality of Support: 10.0/10 (Category avg: 9.0/10)
  • AI Text Generation: 5.0/10 (Category avg: 7.5/10)

Who Is the Company Behind Linkwheelie?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Linkwheelie?

MagicMail

The MagicMail Server is a 'Turnkey' Carrier grade ISP/Telco and Email Provisioning server.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind MagicMail?

Who Uses This Product?

  • Company Size: 100% Medium

What Are Recent G2 Reviews of MagicMail?

What Are G2 Users Discussing About MagicMail?

mail7.net

Email verification tool actually connects to the mail server and checks if the mailbox exists or not.

Average Rating: 5.0/5.0

Total Reviews: 1

Who Is the Company Behind mail7.net?

  • Seller: Mail7
  • Year Founded: 2013
  • HQ Location: N/A
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of mail7.net?

mailfloss

Email list management solution with analytics dashboard, blacklisting and white-listing options for automated bulk email verification.

Average Rating: 4.0/5.0

Total Reviews: 1

How Do G2 Users Rate mailfloss?

  • Quality of Support: 6.7/10 (Category avg: 9.0/10)

Who Is the Company Behind mailfloss?

  • Seller: mailfloss
  • Year Founded: 2018
  • HQ Location: Niagara Falls, CA
  • LinkedIn® Page: www.linkedin.com
    3 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of mailfloss?

What Are G2 Users Discussing About mailfloss?

Mailsfinder - Best Email Finder and Verification Tool

The only tool built for SDRs, BDRs & agencies to fuel outbound with clean, accurate, affordable emails.

Average Rating: 4.5/5.0

Total Reviews: 1

Who Is the Company Behind Mailsfinder - Best Email Finder and Verification Tool?

  • Seller: Mailsfinder
  • Year Founded: 2025
  • HQ Location: N/A
  • Twitter: @Heartbeatechno
    220 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®
  • Ownership: Private

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Mailsfinder - Best Email Finder and Verification Tool?

NoBounz

NoBounz is an AI-driven email verification and list cleaning platform that ensures high deliverability and minimizes bounce rates. It analyzes 15 critical factors including domain reputation, SMTP authentication patterns, spam trap detection, role-based filtering, disposable email identification, and deliverability prediction.

Average Rating: 5.0/5.0

Total Reviews: 1

How Do G2 Users Rate NoBounz?

  • Ease of Admin: 10.0/10 (Category avg: 9.3/10)
  • Quality of Support: 10.0/10 (Category avg: 9.0/10)

Who Is the Company Behind NoBounz?

  • Seller: NoBounz
  • Year Founded: 2025
  • HQ Location: N/A
  • LinkedIn® Page: linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Do G2 Reviewers Say About NoBounz?

AI-generated summary from verified user reviews

Pros
  • Users value the accuracy of NoBounz, effectively reducing bounces and improving email campaign performance.
  • Users find NoBounz to have a simple and easy-to-use dashboard, enhancing their email cleaning experience.
  • Users appreciate the simple and easy-to-use interface of NoBounz, enhancing their overall satisfaction and experience.
Cons
  • Users experience slow processing with NoBounz, which hinders efficiency despite its effectiveness.

What Are Recent G2 Reviews of NoBounz?

Null Bounce

Null Bounce is an email validation tool that helps companies decrease the bounce rate for email campaigns. Also, the service is available as an API, which can be used, for example, on sign-up forms to ensure that user submits a valid email address. To verify each email, Null Bounce uses several different methods, including SMPT-validation and some provider-specific methods. Role-base, disposable, and free emails are detected as well. All duplicated emails are free. Here are some features of Null Bounce: 1. Free Trial 2. SMTP Verification 3. ESP-specific validation 4. Anti-greylisting method 5. API Access 6. Disposable emails cleaner 7. Catch-All Domain checker 8. Email duplicates checker 9. Role and free email detection 10. Unknown results are free

Average Rating: 4.0/5.0

Total Reviews: 1

Who Is the Company Behind Null Bounce?

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Null Bounce?

What Are G2 Users Discussing About Null Bounce?

Salestools

Salestools.io build the world's first AI SDR's and AI Sales agents, pioneered since 2018. Unlike traditional sales intelligence tools, our AI-driven solution operates independently owning the data layer to execute end-to-end prospecting, outreach, and engagement at unprecedented scale. Salestools.io AI SDR's work autonomously to target, prospect, reply 24/7, handle objections and build personalised outreach by Email and LinkedIn. It creates personalized, unique, and relevant emails for each prospect and LinkedIn messages on behalf of every sales representatives, and none will know. It uses Social Selling engagement mechanism crafting comments on autopilot or co-pilot and 87% connection request rate is guaranteed. Forget lead forms - Salestools empowers you to identify and engage every anonymous website visitor, even those who don't leave their information. By seamlessly integrating ExactVisitor.com, we reveal the true identities behind your website traffic. No more guessing games. Now you can pinpoint the exact decision-makers visiting your site and immediately add them to highly personalized outreach campaigns. Our AI-powered systems craft custom connection requests and messaging that captivates each prospect, driving engagement and new pipeline.

Average Rating: 4.3/5.0

Total Reviews: 19

How Do G2 Users Rate Salestools?

  • Has the product been a good partner in doing business?: 7.6/10 (Category avg: 9.2/10)
  • Ease of Admin: 8.0/10 (Category avg: 9.3/10)
  • Quality of Support: 7.9/10 (Category avg: 9.0/10)

Who Is the Company Behind Salestools?

  • Seller: Salestools
  • Year Founded: 2015
  • HQ Location: San Francisco, US
  • Twitter: @Salestoolsio
    1,340 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    11 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Computer Software, Information Technology and Services
  • Company Size: 50% Small, 25% Large

What Do G2 Reviewers Say About Salestools?

AI-generated summary from verified user reviews

Pros
  • Users value how Salestools effectively supports business development by enhancing digital sales strategies and user contributions.
  • Users commend Salestools for its effective digital sales support, enhancing contributions and overall user experience.
  • Users commend Salestools for its thoughtful design that enhances digital sales and user contribution experience.
  • Users commend Salestools for its effective user support that enhances digital sales efficiency and contributor experience.
Cons
  • Users express frustration over the non-user-friendly interface that complicates cancellation and ruins their experience.
  • Users are frustrated with payment issues, facing difficulties in canceling subscriptions and obtaining refunds from Salestools.
  • Users experience poor customer support, feeling trapped with no response or resolution for cancellations and refunds.
  • Users express frustration over subscription issues, feeling trapped with ongoing payments and no response from customer service.
  • Users express frustration with persistent bugs and poor support, leading to difficulties in using Salestools effectively.

What Are Recent G2 Reviews of Salestools?

What Are G2 Users Discussing About Salestools?

Spotzee

Email Verifier is a web based email verification tool for email address verification services at affordable prices. Email Verifier is also a 12 stage email verification process will ensure you get rid of all invalid emails and helping you boost your return on investment (ROI) for email marketing campaigns.

Average Rating: 4.5/5.0

Total Reviews: 1

How Do G2 Users Rate Spotzee?

  • Quality of Support: 8.3/10 (Category avg: 9.0/10)

Who Is the Company Behind Spotzee?

  • Seller: Jonah and Associates
  • Year Founded: 2005
  • HQ Location: Auckland, NZ
  • Twitter: @jonahassociates
    46 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1 employees on LinkedIn®

Who Uses This Product?

  • Company Size: 100% Small

What Are Recent G2 Reviews of Spotzee?

Neeraja Prakash
NP
Researched and written by Neeraja Prakash
Updated November 19, 2024