--- title: Kickbox Reviews meta_title: 'Kickbox Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 666 reviews by the users' company size, role or industry to find out how Kickbox works for a business like yours. aggregate_rating: rating_value: 4.5 review_count: 666 scale: '5' date_modified: '2026-09-01' parent_category: name: Collaboration & Productivity url: https://www.g2.com/categories/collaboration-productivity --- # Kickbox Reviews **Vendor:** Ziff Davis **Category:** [Email Verification Software](https://www.g2.com/categories/email-verification) **Average Rating:** 4.5/5.0 **Total Reviews:** 666 **AI Enabled:** This product embeds AI to enhance or extend its core functionality. ## About Kickbox Kickbox is a leading email verification solution, empowering businesses to verify email addresses, whether one by one in real-time or in bulk—ensuring you only send to valid and responsive email contacts. Kickbox's real-time email verification API seamlessly integrates with various web forms and touchpoints, from account sign-ups and lead capture forms to your CRM or e-POS system. By implementing this additional layer of security, the API efficiently sifts out fake or invalid email addresses on the spot. This way, only deliverable emails make their way into your database, ensuring you never miss an opportunity to connect with your audience. Highlighted Features: Real-Time & Bulk Verification: Kickbox aids in cleaning your email lists and validating addresses added to your database. Seamless Integration: The real-time email verification API effortlessly integrates into web forms, capturing email data from account sign-ups to CRM platforms. Typos? No Problem: The Kickbox API adeptly handles typos by prompting users to rectify errors in real-time, ensuring a seamless connection with your audience. Reliable & Accurate Results: Kickbox's results prioritize reliability and accuracy, whether you're verifying emails individually or in bulk. Compliance & Data Protection: Kickbox leads in compliance and data protection and adheres to best practices. Sendex™ Scores: The dashboard serves as your command center, offering a proprietary quality score for every email and providing additional metrics for strategic decision-making. Community & Support: Kickbox provides easy-to-follow documentation, top-notch support, and professional deliverability consulting solutions. Why Opt for Kickbox? Kickbox is more than just a service; it's your strategic partner to help you maximize your email goals and make more money with email. With a commitment to compliance, user-friendly integration, and customer success, Kickbox ensures your emails not only land in inboxes but also maximize your marketing ROI. ## Kickbox Pros & Cons Pros and Cons are compiled from review feedback and grouped into themes to provide an easy-to-understand summary of user reviews. **What users like:** - Users commend the **ease of use** of Kickbox, praising its simplicity and seamless integration for non-techy individuals. (129 reviews) - Users appreciate the **single verification API** of Kickbox, ensuring accurate and deliverable email addresses for marketing. (49 reviews) - Users appreciate the **user-friendly interface** of Kickbox, which makes list management and email verification effortless. (45 reviews) - Users appreciate the **easy setup** of Kickbox, finding it quick and efficient for email list management. (40 reviews) - Users value the **amazing accuracy** of Kickbox, ensuring clear and reliable data for their needs. (39 reviews) - Users value Kickbox's **affordability** , allowing small businesses to efficiently manage email lists without overspending. (37 reviews) - Users value the **fast data retrieval** and **ease of use** of Kickbox, enhancing their email management experience. (35 reviews) - CRM Integration (26 reviews) - Users value the **easy integrations** of Kickbox, seamlessly connecting with systems like Hubspot for efficient workflows. (25 reviews) - Reliability (24 reviews) **What users dislike:** - Users find Kickbox **too expensive** , expressing concerns about pricing and suggesting better subscription options. (25 reviews) - Users feel there is **insufficient information** regarding functionality and risky emails, causing confusion after sign-up. (13 reviews) - Users report concerns over **data accuracy** , with many emails marked as 'risky' or 'unknown', impacting confidence in deliverability. (11 reviews) - Users feel Kickbox needs **improvement in filtering disposable domains** , as it struggles with managing user sign-ups effectively. (11 reviews) - Users express concern over **missing critical information** , making it difficult to evaluate email deliverability effectively. (10 reviews) - Users often face **email verification issues** , including false invalid flags and unclear unknown status, causing frustration. (9 reviews) - Credit System Issues (7 reviews) - Accuracy Issues (6 reviews) - Slow Loading (6 reviews) - Difficulty (5 reviews) ## Kickbox Reviews ### 1. Essential for Email Deliverability, Easy to Use **Rating:** 5.0/5.0 stars **Reviewed by:** Emily H. | Digital Marketing Specialist, Small-Business (50 or fewer emp.) **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** February 18, 2026 **What do you like best about Kickbox?** I use Kickbox to scan lists for deliverability before importing them into HubSpot. I appreciate that it identifies potential deliverability issues, which helps me keep my bounce rates down on my marketing emails by avoiding sending to addresses that would bounce. I find it easy to use, and I like the clear classification and explanations. Contacts are classified into different levels of riskiness regarding deliverability, and the reasons are explained, which I find helpful. Additionally, the initial setup of Kickbox was very easy. **What do you dislike about Kickbox?** The integration with HubSpot is not very useful. Currently, it can pull in lists from HubSpot, but I don't need to scan these contacts, I will have done so before they entered the platform. What I would like to do is be able to send new contact lists into HubSpot from Kickbox as an import. **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox to scan lists for deliverability, identifying potential issues to keep my email bounce rates down. ### 2. Super Easy to Use **Rating:** 4.0/5.0 stars **Reviewed by:** Everett G. | Co-Founder & CEO, Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** January 13, 2025 At G2, we prefer fresh reviews and we like to follow up with reviewers. They may not have updated their review text, but have updated their review. **What do you like best about Kickbox?** Kickbox allows you to upload lists, then segment and validate them super easily with a really friendly interface. **What do you dislike about Kickbox?** AI has things moving so fast, tough to tell who is ahead and who is behind **What problems is Kickbox solving and how is that benefiting you?** We took a brief hiatus while we re-wrote some of our codebase, and as we re-launched Kickbox helped us validate emails to ensure deliverability after a brief down period. ### 3. Easy Email Verification, Great Stats, User-Friendly **Rating:** 5.0/5.0 stars **Reviewed by:** Ray S. | Golf Instructor, Mid-Market (51-1000 emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** July 22, 2026 **What do you like best about Kickbox?** Easy email verification and good stats, easy to use UI **What do you dislike about Kickbox?** It does what I need it to do, no complaints **What problems is Kickbox solving and how is that benefiting you?** helps save me time by only sending emails to addresses that are active. ### 4. Effortless Email Verification, Reliable Results **Rating:** 4.5/5.0 stars **Reviewed by:** Salesforce S. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** February 11, 2026 **What do you like best about Kickbox?** I appreciate Kickbox's simplicity and accuracy. The interface is easy to use, and the verification results are reliable. The real-time validation is very helpful for preventing bad email entries. It's a smooth, hassle-free tool that just works. The initial setup was very easy, and everything felt intuitive, so we were up and running quickly. We use Kickbox with Salesforce and HubSpot, which helps maintain accurate records, reduce bounce rates, and improve email deliverability. **What do you dislike about Kickbox?** One thing that could be improved is the consistency of the verification results. Occasionally, when I rerun the same email address, Kickbox returns different outcomes, which can make it a bit confusing. Improving result stability and accuracy would make the tool even more reliable. **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox for Salesforce contacts email verification to reduce bounce rates, maintain a healthy email list, and prevent fake email entries. It identifies and removes risky email addresses, improves email deliverability, and is a reliable tool when integrated with platforms like Salesforce and HubSpot. ### 5. User-Friendly but Sometimes Overly Cautious **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** July 16, 2026 **What do you like best about Kickbox?** I really like Kickbox because it's a simple, easy-to-use platform. It's very simple to navigate, which is great when I'm trying to get prices. The intuitive UI makes my life easier, and I appreciate the great pricing. **What do you dislike about Kickbox?** I think sometimes it's a little too stringent in its review. When it doesn't know, it kinda disallows, and that's annoying, especially when you're dealing with a big list. **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox to help with email verification for my marketing lists. I find it simple and easy to use, straightforward to navigate, and it offers great pricing. However, I sometimes find it too stringent in its reviews, which can be annoying with large lists. ### 6. Effortless Email List Clean-Up with Kickbox **Rating:** 5.0/5.0 stars **Reviewed by:** Brian B. | Senior Marketing Manager **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** December 11, 2025 At G2, we prefer fresh reviews and we like to follow up with reviewers. They may not have updated their review text, but have updated their review. **What do you like best about Kickbox?** I use Kickbox to cleanse my email lists, ensuring my newsletters are sent without interruption. It's simple to use and provides quick results, which I find incredibly valuable. With Kickbox, I've been able to increase my newsletter delivery rates and keep my system from locking up due to too many invalid address sends. I've used it for both large and smaller lists, and it's a convenient tool, especially when dealing with lists that might not have solid contact info. When I first started, I inherited a poorly maintained customer email list and Kickbox helped me quickly cleanse it, eliminating issues with account lockouts and helping me maintain a 99% delivery rate. The initial setup was very easy, and I was able to integrate it with my HubSpot database seamlessly. I also like that I can rely on it to ensure that emails reach the right recipients and maintain high delivery rates. **What do you dislike about Kickbox?** I can't say I have many complaints. I didn't realize there was a whole 'Understanding Results' section and this could have been helpful to know sooner if I knew where to look. Perhaps make it easier to find on the site or as a pop-up option, like a tutorial. **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox to cleanse my email lists, boosting my newsletter delivery rate to 99% and preventing account lockouts from invalid addresses. ### 7. Simple, Fast, and Reliable—Great Connectors (Especially Klaviyo) **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Newspapers | Mid-Market (51-1000 emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through Google One Tap using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** July 13, 2026 **What do you like best about Kickbox?** It's very simple and works well. The connectors worked great, especially with Klaviyo. Performance was quick, and pricing was about right for us. Support was easy when we needed it. **What do you dislike about Kickbox?** I dont like that the lists you do/filter expire. I should be able to see a backfile in my opinion. **What problems is Kickbox solving and how is that benefiting you?** Our deliverability score in Klaviyo was in the 30s. After using Kickbox to filter our contacts, deliverability gained dramatically, up into the 70s. ### 8. Kickbox Review for Transportation Industry **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Transportation/Trucking/Railroad | Mid-Market (51-1000 emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** July 25, 2024 At G2, we prefer fresh reviews and we like to follow up with reviewers. They may not have updated their review text, but have updated their review. **What do you like best about Kickbox?** Clean, intuitive, flexible verification options, it’s super quick and reliable, the pricing is super transparent no matter what budget you have, there are actionable results so you know if it’s safe to send, hard bounce, etc. I’d like to use this platform moving forward **What do you dislike about Kickbox?** A better catch and unknown email handling, more advanced intelligence, lower pricing, better explanations, more consistent results, but overall it’s really good **What problems is Kickbox solving and how is that benefiting you?** Cleaning up an otherwise old list with MANY emails that are no longer in service. Saved our team SO much time from having to go through all the emails manually. ### 9. Kickbox Makes Email Verification Simple, Fast, and Easy **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Music | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** September 01, 2026 **What do you like best about Kickbox?** Kickbox is very simple to use to verify emails. The website is very easy to use and it is pretty fast. **What do you dislike about Kickbox?** I have not found anything that I dislike. **What problems is Kickbox solving and how is that benefiting you?** It is saving me time by verifying email lists so I know which emails are still in use. ### 10. Effortlessly Boosts Email Validation with Ease **Rating:** 5.0/5.0 stars **Reviewed by:** Vanessa S. | Marketing director, Mid-Market (51-1000 emp.) **Validated Reviewer:** Validated through Google using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** April 15, 2026 **What do you like best about Kickbox?** I found Kickbox super easy to navigate. I didn't have to really think about how to accomplish what I wanted to. The initial setup was also straightforward; I just had to create an account, upload my CSV file, and within thirteen minutes, 200,000 contacts were reviewed. Everything was super easy to understand, which is exactly why I rated Kickbox a 10—I find it so easy to use and will definitely be referring people. **What do you dislike about Kickbox?** I guess the only thing that I can elaborate on is more clarity when it comes to price points. Because the credits were a little bit misleading. **What problems is Kickbox solving and how is that benefiting you?** Kickbox helped validate my subscriber list emails, saving me money and improving my sending score. ### 11. Effortless Email Verification with Kickbox **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User | Mid-Market (51-1000 emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** August 12, 2026 **What do you like best about Kickbox?** I like that Kickbox is really easy to use and set up. It works well with Customer.io, speeding up the process of implementing the scanning for bad or risky emails in our marketing inbox. The setup is very simple, making it efficient for our small marketing team. **What do you dislike about Kickbox?** I think everything works fine, but the reporting could be more robust. **What problems is Kickbox solving and how is that benefiting you?** Kickbox keeps our email marketing inbox clean by verifying emails, ensuring we send to valid customers. It's easy to set up, which speeds up the process of scanning for bad or risky emails. ### 12. Effortless Email Validation with a Simple UI **Rating:** 5.0/5.0 stars **Reviewed by:** Alexander R. | Operations Director, Small-Business (50 or fewer emp.) **Validated Reviewer:** Validated through Google using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** July 14, 2026 **What do you like best about Kickbox?** I like Kickbox for its really simple user experience, from payments to uploads to downloads and the API. It's just simple to use, making it easy for me to do what I need. The initial setup was super easy too. **What do you dislike about Kickbox?** Nothing **What problems is Kickbox solving and how is that benefiting you?** Kickbox ensures I send to addresses that won't bounce and provides a really easy user interface, making it simple to pay, see, upload, and use the API. ### 13. Effortless Email List Cleaning with Kickbox **Rating:** 5.0/5.0 stars **Reviewed by:** Iain H. | Mid-Market (51-1000 emp.) **Validated Reviewer:** Validated through Google using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** March 11, 2026 **What do you like best about Kickbox?** I like that Kickbox's user interface and user experience are very easy to use and simple. It reduces the time it takes to understand the platform, and you can use it straight away without having to learn too much or watch tutorial videos. The initial setup was very easy, and I had no issues at all. **What do you dislike about Kickbox?** It might be able to do better at telling me what else I can use Kickbox for other than cleaning email distribution lists. I'm not aware of doing anything else. It may well do other things and have other features. **What problems is Kickbox solving and how is that benefiting you?** Kickbox cleans my email distribution lists and its user interface is very easy to use. I can understand the platform quickly, and I don't need to watch tutorial videos to start using it. ### 14. Easy to use. Simple value prop. **Rating:** 3.5/5.0 stars **Reviewed by:** Chris S. | VP of Operations, Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** July 13, 2026 **What do you like best about Kickbox?** It's very simple and easy to use. We've integrated it across products and marketing tools. **What do you dislike about Kickbox?** More integrations would make it the most helpful. **What problems is Kickbox solving and how is that benefiting you?** Ensuring quality emails for deliverability. ### 15. Easy to Use, Clear Instructions, and Affordable Pricing **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** August 07, 2026 **What do you like best about Kickbox?** It was very easy to use. The instructions were clear and the uploading process efficient. Pricing was affordable, which made it a risk-free option to try. **What do you dislike about Kickbox?** I can't think of anything I didn't like. Everything was good. **What problems is Kickbox solving and how is that benefiting you?** Kickbox is helping me validate old lists that I haven't used in a long time. ### 16. Easy, Affordable List Scrubbing with a Handy API Integration **Rating:** 4.5/5.0 stars **Reviewed by:** David W. | Sales Engineer, Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** June 12, 2026 **What do you like best about Kickbox?** The ease of use and cost of scrubbing my subscriber list. There's an api that connects to my Autoresponder account too. **What do you dislike about Kickbox?** I haven't found anything to dislike yet. **What problems is Kickbox solving and how is that benefiting you?** It has helped me eliminate email accounts that can't be trusted and bots. ### 17. Effortless Email Validation, Zero Issues in 5 Years **Rating:** 5.0/5.0 stars **Reviewed by:** Prashaant L. | Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through Google using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** January 16, 2024 At G2, we prefer fresh reviews and we like to follow up with reviewers. They may not have updated their review text, but have updated their review. **What do you like best about Kickbox?** I like Kickbox for email validation, which is my primary requirement for sending bulk emails to my subscribers. I've been using Kickbox for more than five years, and it's never given me any challenges. I also found the setup quite easy; it took us less than thirty minutes to do the entire configuration, and we've been smoothly using it since then. **What do you dislike about Kickbox?** nothing, i am satisfied with kickbox **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox primarily to validate email IDs before sending bulk emails to my subscribers. It ensures the emails are accurate, which is crucial for my app focused on learning games for kids. ### 18. Easy Integration and Great at Catching Typos & Undeliverable Emails **Rating:** 4.5/5.0 stars **Reviewed by:** David P. | Supply Chain Manager, Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** February 11, 2026 **What do you like best about Kickbox?** It was very easy to integrate, and it does a really good job of weeding out typos and undeliverable addresses. **What do you dislike about Kickbox?** The dashboard doesn't give a bunch of information. It's very simple, which is nice for a general understanding, but I would like to be able to get down and see which emails were categorized how in a given time frame. **What problems is Kickbox solving and how is that benefiting you?** It is getting people to correct typos before they get into our system. It is also helping us weed out or at least keep an eye on risky emails to make sure they aren't pulling our numbers down. ### 19. Easy to Navigate and Quickly Ensures Clean Email Lists **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** July 21, 2026 **What do you like best about Kickbox?** It was incredibly easy to navigate and gets an essential job done quickly! Having the confidence that we're not sending to bad emails makes it easier to build a solid list and deliver pleasing open rates/low spam complaints to clients. **What do you dislike about Kickbox?** No downsides other than obviously needing to have the cash to pay for service, but it's worth it. **What problems is Kickbox solving and how is that benefiting you?** We had very high spam complaints that were putting us at risk with our ESP. Very close to them kicking us off the platform, so we needed a way to ensure our emails were all legit. ### 20. East to use, fast uploads and helpful human support. **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through Google using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** May 21, 2026 At G2, we prefer fresh reviews and we like to follow up with reviewers. They may not have updated their review text, but have updated their review. **What do you like best about Kickbox?** I like quick upload and pay as you go model **What do you dislike about Kickbox?** It feels a little conservative, but that's ok. It makes me think they are watching our for my business. Price is fine. **What problems is Kickbox solving and how is that benefiting you?** Cleaning and verifying email lists. SO I can maintain a good domain score with the marketing program I lead. It helps avoid shutdowns and saves money over time. ### 21. User-Friendly, Easy to Navigate, and Reasonably Priced **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Industrial Automation | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** July 27, 2026 **What do you like best about Kickbox?** It's very user friendly and the website is easy to navigate. Pricing is reasonable **What do you dislike about Kickbox?** It could be a little faster with results, but not a deal breaker **What problems is Kickbox solving and how is that benefiting you?** Our deliverability score was going down due to a high bounce rate so now we clean up our emails before entering them into our email software ### 22. Efficient API and Bulk Email Processing That Delivers **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Entertainment | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** July 13, 2026 **What do you like best about Kickbox?** The efficient API and the bulk processing of my email lists. **What do you dislike about Kickbox?** It could be more efficient with checks of already checked emails, so I don't have to pay multiple times. I also had to make my own Wordpress plugin to utilize it on a live site. **What problems is Kickbox solving and how is that benefiting you?** It's helping me prevent spam and throwaway email leads tainting my mailing lists. ### 23. Fast, Accurate Email Verification **Rating:** 4.5/5.0 stars **Reviewed by:** Eddie B. | owner, Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account added to their profile **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** May 27, 2026 **What do you like best about Kickbox?** The Accuracy and speed of verifying emails **What do you dislike about Kickbox?** I wish you offered an email list cleaning app that deletes duplicates and allows for the elimination of email addresses that contain specific words. **What problems is Kickbox solving and how is that benefiting you?** Without Kickbox I would be paying a lot more for email verification ### 24. Efficient Email Scrubbing and Reliable Results **Rating:** 5.0/5.0 stars **Reviewed by:** Michael W. | Small-Business (50 or fewer emp.) **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** June 03, 2026 **What do you like best about Kickbox?** I loved how efficient Kickbox was. Once we submitted our list of profiles, it scrubbed the list very quickly and provided results in an efficient and clearly understandable manner. **What do you dislike about Kickbox?** Nothing to complain about. I would love it if the app would cross check my original list and highlight which profiles should be deleted. **What problems is Kickbox solving and how is that benefiting you?** Kickbox helps me quickly scrub our email list and verify legitimate profiles, cleaning up our customer base accurately. I love its efficiency and clarity. ### 25. Fast Email Verification That’s Easy to Use **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Higher Education | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** August 12, 2026 **What do you like best about Kickbox?** How quickly emails are verified and ease of use. **What do you dislike about Kickbox?** Hard to understand how to use at first, but once figured out it was easy. **What problems is Kickbox solving and how is that benefiting you?** Help email sequences have list bounce rates and more high quality domains/emails to reach out to. ### 26. Kickbox Restored My Deliverability and Protected My Sender Reputation **Rating:** 5.0/5.0 stars **Reviewed by:** Ross C. | President, Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** January 16, 2026 **What do you like best about Kickbox?** Kickbox helps me keep my sender reputation in good standing. Ever since Google tightened down on email security late last year, a lot of my messages started landing in spam and my deliverability tanked. After I cleaned my list and ran a warm-up sequence that only sent to deliverable contacts, things improved and felt much more stable overall. **What do you dislike about Kickbox?** Nothing at this time of note. Everything has been fairly straightforward and simple. **What problems is Kickbox solving and how is that benefiting you?** Cleaning my email list and leaving only verified, deliverable contacts is helping my sender reputation tremendously, that was the reason I went with this company and so far the results are holding up. ### 27. Simplified Email Verification with Kickbox **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Mid-Market (51-1000 emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** October 29, 2025 At G2, we prefer fresh reviews and we like to follow up with reviewers. They may not have updated their review text, but have updated their review. **What do you like best about Kickbox?** I like Kickbox for its clear classification of email health, which simplifies understanding which emails can impact my deliverability rate. I appreciate the simplicity of the final result file, which groups results into four straightforward categories: Good, might be risky, bad, and don't know, without overwhelming me with too many categories. Also, the initial setup was super easy. **What do you dislike about Kickbox?** I don't like that I can't directly import in the CRM. I can directly pick a segment from HubSpot and ask for email verification, but I can't do it for importing data back. I take data first in Excel then I import manually. **What problems is Kickbox solving and how is that benefiting you?** Kickbox helps validate if emails are deliverable and provides a clear classification of email health, which impacts deliverability rates. It simplifies results into four categories, making evaluation efficient. ### 28. Accurate Tool with Easy Setup **Rating:** 5.0/5.0 stars **Reviewed by:** Mariah T. | Digital Marketing Manager, Small-Business (50 or fewer emp.) **Validated Reviewer:** Validated through a business email account added to their profile **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** April 16, 2026 **What do you like best about Kickbox?** I like that Kickbox is easy to use and very accurate. It really helps me to ensure that email addresses on our newsletter list are for real people, which increases engagement and ensures our marketing emails and newsletters are reaching the right audience. The initial setup was also very easy and straightforward. **What do you dislike about Kickbox?** The limit on the pricing for the number of contacts. It would be easier to have a monthly plan. **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox to clean my contact list, reduce bounce rates, and ensure real email addresses, which increases engagement for our newsletters and marketing emails. ### 29. Simple Yet Effective Email Verification Tool **Rating:** 4.5/5.0 stars **Reviewed by:** Ishan S. **Validated Reviewer:** Validated through Google using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** December 17, 2025 At G2, we prefer fresh reviews and we like to follow up with reviewers. They may not have updated their review text, but have updated their review. **What do you like best about Kickbox?** I like that Kickbox is a simple solution that helps us verify emails easily. It's really easy to onboard and connect, and it's not too expensive. One person was able to get onboarded in enough time. The tool provides good insights into what our average Sendek score is. The process of integrating it is quite straightforward, and the support forum is helpful. **What do you dislike about Kickbox?** There isn't a simple one-off integration with Customer.io, so it took a little bit of time to integrate. I had to do a whole API integration as a nontechnical user, and as a marketer, this was a bit challenging, but not impossible. **What problems is Kickbox solving and how is that benefiting you?** Kickbox provides a simple and affordable solution for verifying emails at scale. It's easy to onboard and integrate, offering good insights into email metrics. ### 30. Effortless API Integration and Intuitive Dashboard Make Email Verification a Breeze **Rating:** 4.0/5.0 stars **Reviewed by:** Jefersson B. | Software Developer, Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through Google using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** October 21, 2025 **What do you like best about Kickbox?** I appreciate how straightforward the API integration is and how reliable the validation results have been. The response structure is clear and easy to parse, which simplifies integrating Kickbox into automated workflows for email verification. Additionally, the dashboard is intuitive and offers helpful analytics for tracking validation activity. **What do you dislike about Kickbox?** The only drawback I've noticed is that SMTP verification can occasionally take longer with some domains, and there is a lack of detailed information when a request times out. Additionally, having more flexible pricing options for smaller verification batches would be beneficial. **What problems is Kickbox solving and how is that benefiting you?** Kickbox helps us ensure that only valid and active email addresses are stored in our system. By integrating it into our user registration and contact-update flows, we’ve significantly reduced bounce rates and improved overall deliverability. It also saves time for our team by automating the verification process and providing accurate real-time results through its API. ### 31. Customizable, Efficient, and Easy to Integrate **Rating:** 5.0/5.0 stars **Reviewed by:** Francis M. | Managing Editor | SEO blog strategy, social posts, writer feedback, Small-Business (50 or fewer emp.) **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** April 21, 2026 **What do you like best about Kickbox?** I use Kickbox for verifying my Excel sheet of client emails. It helps reduce my bounce rate by flagging email addresses to remove. My favorite feature is the level of customization when setting the filters, which helps me control exactly what's being filtered from my database and manage the risk to my bounce rate. The initial setup was pretty easy, taking only a few minutes. **What do you dislike about Kickbox?** So far, no complaints. **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox to verify email addresses, reducing my bounce rate. The customizable filters let me manage database filtering and control bounce rate risks. ### 32. Fast and Cost-Effective Email List Cleanup **Rating:** 3.5/5.0 stars **Reviewed by:** Damian N. | Small-Business (50 or fewer emp.) **Validated Reviewer:** Validated through Google using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** March 23, 2026 **What do you like best about Kickbox?** I use Kickbox for cleaning client's email lists, which include newsletter sign-ups, member addresses, and customer purchase acquisitions. I find it fast and easy to use. I value the price and the speed at which it was able to clean my email lists. The initial setup was very easy and simple; I was up and running in 5 minutes. **What do you dislike about Kickbox?** I wish there was more insights to what it cleaned. I see the raw data and a pie chart, but more detailed reports would be nice **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox to clean client email lists by filtering out old, spam, and invalid addresses. It's fast, easy, and cost-effective. ### 33. Reliable, accurate, and easy-to-use email validation tool **Rating:** 4.5/5.0 stars **Reviewed by:** Rayyan K. | Marketing Manager, Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through Google using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** October 09, 2025 **What do you like best about Kickbox?** Kickbox helped us clean and validate our large email database quickly, improving our deliverability and reactivation efforts. Kickbox makes email validation simple and dependable. The platform is intuitive, fast, and provides detailed verification results that give you full confidence in your data quality. I especially appreciate how seamless it was to upload lists, get results, and integrate the validated emails back into our CRM for marketing campaigns. **What do you dislike about Kickbox?** There’s very little to dislike. The only area for improvement would be more flexible pricing for one-off, large-volume validations, especially for teams doing occasional cleanups rather than ongoing verification. **What problems is Kickbox solving and how is that benefiting you?** Kickbox’s real-time accuracy and clear categorization of valid, risky, and invalid emails are extremely useful. It helped us reduce bounce rates, improve sender reputation, and ensure our reactivation emails reached the right inboxes. The reporting is transparent and easy to interpret, making it ideal for marketing teams who need to act fast and with confidence. ### 34. Mission-Critical Email Verification software **Rating:** 3.5/5.0 stars **Reviewed by:** John P. | Director Of Information Technology, Mid-Market (51-1000 emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** April 14, 2026 **What do you like best about Kickbox?** E-mail verification is a mission critcal part of our business to ensure a flawless e-mail delivery to our members. **What do you dislike about Kickbox?** Kickbox tends to be on the pricier side, especially for high-volume verification, and we often wish for subscription-based unlimited plans but those aren't available. Also, those credits expire after 12 months, which isn't ideal for everyone. **What problems is Kickbox solving and how is that benefiting you?** Saved time ### 35. Excellent Email Validation for Safer Invitations and Marketing Emails. **Rating:** 4.0/5.0 stars **Reviewed by:** Kibaek K. | Sr. Full-stack software Engineer, Mid-Market (51-1000 emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through Google One Tap using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** April 14, 2026 **What do you like best about Kickbox?** The email validation feature is really good for checking addresses before sending invitations and marketing emails. **What do you dislike about Kickbox?** It’s a little expensive, and something doesn’t seem right with the validation. That’s why our team also uses EmailOversight for additional validation. **What problems is Kickbox solving and how is that benefiting you?** We send more than 2M emails every year, and this helps us avoid several scam flags from email providers. ### 36. Effortless Database Cleaning with Seamless Klaviyo Integration **Rating:** 5.0/5.0 stars **Reviewed by:** Victoria a. | Small-Business (50 or fewer emp.) **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** April 13, 2026 **What do you like best about Kickbox?** I appreciate Kickbox for its fast cleaning of email databases, which is essential for our client migrations or when databases haven't been cleaned in years. It's very easy to integrate with Klaviyo, and the quick integration means that it connects easily without needing any extra information or development work. I find that it integrates with just one click, and the initial setup was very easy—a solid 5/5. Overall, it's good for our needs. **What do you dislike about Kickbox?** nothing **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox for fast cleaning of email databases and appreciate its easy one-click integration with Klaviyo without extra dev work. ### 37. Why I went with Kickbox **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Entertainment | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** This review contains authentic analysis and has been reviewed by our team **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** July 21, 2026 **What do you like best about Kickbox?** The simplicity of it! Once everything is approved account-wise, uploading the lists is so easy. **What do you dislike about Kickbox?** The fact that I had to wait for account approval... lame I know. **What problems is Kickbox solving and how is that benefiting you?** Weeding out the "bad" & old emails that we can't deliver to. These are really old customers. ### 38. Easy to Use and Affordable Platform **Rating:** 5.0/5.0 stars **Reviewed by:** Joe W. | Graphic Designer, Small-Business (50 or fewer emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account added to their profile **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** May 27, 2026 **What do you like best about Kickbox?** The ease of use of the platform and its affordability. **What do you dislike about Kickbox?** I would like a MailChimp integration to save a step. **What problems is Kickbox solving and how is that benefiting you?** I can reassure my clients that their email domain will not be blacklisted. ### 39. Effortless Email Verification, Seamless Integration **Rating:** 5.0/5.0 stars **Reviewed by:** Boaz F. | Mid-Market (51-1000 emp.) **Validated Reviewer:** Validated through a business email account added to their profile **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** March 16, 2026 **What do you like best about Kickbox?** I like how Kickbox is easy to use, making it straightforward for email verifications. I also appreciate that Insightly works well with Kickbox, which is helpful because we do email blasts and need to test our customer list from Insightly for deliverability. Additionally, the initial setup of Kickbox was very easy, which is a big plus for getting started quickly. **What do you dislike about Kickbox?** no dislikes **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox for email marketing verifications. It solves the problem of needing better results through email marketing, leading to more sales. It integrates well with Insightly, enhancing deliverability of email blasts. I appreciate its ease of use and find the setup very easy. ### 40. Kickbox Makes Email Validation Simple and Effective **Rating:** 4.0/5.0 stars **Reviewed by:** Daniel J. | Head of Revenue Operations, Mid-Market (51-1000 emp.) **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** February 23, 2026 **What do you like best about Kickbox?** Kickbox solves a simple problem well, providing the data points you would need to validate an email address and improve lead scoring, rep outreach and data management without much fuss. The API is super useful. **What do you dislike about Kickbox?** Not much I don't like, it's simple, it does the job. If it were any more than that, it might not be as good. **What problems is Kickbox solving and how is that benefiting you?** KickBox helps validate emails, enabling quick filtering for SPAM and priority filtering within lead collection and data validation processes. ### 41. Good product that helped clean up our mailing lists **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Marketing and Advertising | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** May 23, 2024 At G2, we prefer fresh reviews and we like to follow up with reviewers. They may not have updated their review text, but have updated their review. **What do you like best about Kickbox?** Kickbox has helped us keep our mailing list fresh and lower our bounce rate low **What do you dislike about Kickbox?** Like last time, it's not perfect as a few emails thay were verified still bounced but these are few and far between and something that all platforms have. **What problems is Kickbox solving and how is that benefiting you?** We saw a high bounce rate after bringing our list over to a new CRM, Kickbox helped us ID which emails we need to update ### 42. Kickbox: Easy to Use, Fast List Uploads, and Reliable Results **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Health, Wellness and Fitness | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** May 27, 2026 **What do you like best about Kickbox?** It’s incredibly easy to use. I can upload my list, and it quickly refines the results for me. Overall, I find the results very reliable and consistent. **What do you dislike about Kickbox?** I really don't have any downsides of Kickbox. Maybe the pricing but overall I think it's pretty fair. **What problems is Kickbox solving and how is that benefiting you?** Kickbox helps me keep my contact lists clean and accurate by catching user errors, like spelling mistakes, before they become a problem. ### 43. Kickbox makes email verification easy **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** June 12, 2026 **What do you like best about Kickbox?** Kickbox is a great tool for verifying your email list. The interface is easy to use and intuitive **What do you dislike about Kickbox?** I don't know that I have anything I dislike about Kickbox. I've used it multiple times and its a great tool **What problems is Kickbox solving and how is that benefiting you?** Kickbox is helping us pair down our subscription list so we aren't paying for or sending emails to invalid users ### 44. Reliable List Validation That Protects Domain Integrity **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Consulting | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through LinkedIn **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** June 17, 2026 **What do you like best about Kickbox?** It helps to validate lists I receive for prospecting. It also helps me maintain my domain integrity. **What do you dislike about Kickbox?** We have a corporate account where we each have our own logins. It would be nice if our lists were kept seperate. **What problems is Kickbox solving and how is that benefiting you?** It is helping us not have bounce back emails and ensuring that our outreach is being delivered. ### 45. Efficient, Feature-Rich Service That Exceeded Expectations **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Animation | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account added to their profile **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: G2 invite on behalf of seller:** Invitation from G2 on behalf of a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** July 15, 2026 **What do you like best about Kickbox?** Very efficient with more features than I expected. **What do you dislike about Kickbox?** Nothing yet. I'm very pleased with the service and will be referring others to it. **What problems is Kickbox solving and how is that benefiting you?** We have a new domain that is at high risk if we have bouncebacks This solves that problem. ### 46. Intuitive Email Validation with Room for Data Accuracy Improvement **Rating:** 4.0/5.0 stars **Reviewed by:** Tyler N. | Marketing Director, Mid-Market (51-1000 emp.) **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** December 03, 2025 **What do you like best about Kickbox?** I appreciate how Kickbox enhances my email sending reputation by identifying undeliverable email addresses before dispatch, which safeguards my domain's reputation. I like the fact that Kickbox provides clear upfront pricing tailored exactly to my needs for each email validation job, avoiding any unnecessary upsells, which is both refreshing and cost-effective. The user interface is particularly intuitive, making the setup process simple and user-friendly. Overall, these features have made managing my email lists and maintaining an excellent sender reputation much easier and more efficient. **What do you dislike about Kickbox?** I find the increase in unknown data to be problematic, especially during recent contact runs where this issue has become more noticeable. This seems to occur when data is categorized into deliverable, risky, undeliverable, and unknown buckets, and more pieces are falling into the unknown category. It specifically affected a recent email validation for Tennessee schools, resulting in a significant number of unknown records. **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox for email validation, which helps me maintain a positive sending reputation by identifying undeliverable addresses. It simplifies my workflow with its intuitive UI and fair pricing without upselling. ### 47. Instant Email Validation, Easy Setup **Rating:** 4.5/5.0 stars **Reviewed by:** Ellen R. | Senior Lifecycle Marketing Manager, Mid-Market (51-1000 emp.) **Validated Reviewer:** Validated through Google using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** December 02, 2025 **What do you like best about Kickbox?** I find Kickbox to be incredibly valuable in validating emails for our top-of-funnel users. The service greatly benefits us by preventing attempts to email users with fake or invalid email addresses, thereby protecting our deliverability and maintaining optimal send volumes. I appreciate how easy Kickbox was to set up, as we managed to accomplish it within an hour. Additionally, the speed at which we receive results about email addresses is remarkable, as it happens almost instantly. This efficiency streamlines our process seamlessly. **What do you dislike about Kickbox?** A fair amount of email addresses are marked as 'risky' or 'unknown', which is not very actionable for us. Ideally, a smaller number of email addresses would come back with those statuses so we would feel more confident about whether they are safe to email or not. **What problems is Kickbox solving and how is that benefiting you?** Kickbox helps me validate emails to prevent sending to fake addresses, protecting deliverability and reducing send volume, with easy setup and instant results. ### 48. Exceptional Email Validation, User-Friendly & Affordable **Rating:** 5.0/5.0 stars **Reviewed by:** Daniela P. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** January 27, 2026 **What do you like best about Kickbox?** I like using Kickbox because it helps us ensure that we are emailing people who are able to be emailed, right at the beginning of our life cycle process. I find their verification results really clear and appreciate having so many fields to choose from. I love the competitive pricing too—it's affordable and helps us validate emails without breaking the bank. The user-friendly interface makes it super easy to use without any complications, and setting it up was a breeze. I especially like the Kickbox Sendex and the results feature, and use them a lot. **What do you dislike about Kickbox?** n/a **What problems is Kickbox solving and how is that benefiting you?** I use Kickbox to verify if new database entries are emailable, which maintains data hygiene and prevents emailing undeliverable or risky contacts. ### 49. Fast Contact List Cleaning That Boosted Our Send Rate **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Arts and Crafts | Small-Business (50 or fewer emp.) This reviewer's identity has been verified by our review moderation team. They have asked not to show their name, job title, or picture. **Current User:** The reviewer uploaded a screenshot or submitted the review in-app verifying them as current user. **Validated Reviewer:** Validated through a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** June 17, 2026 **What do you like best about Kickbox?** I was able to upload my list of contacts and quickly get a "clean" list back. My send rate went to 100% **What do you dislike about Kickbox?** Nothing. If there's not an API, I think that would be a great tool to add **What problems is Kickbox solving and how is that benefiting you?** It helped to remove dead emails from my mailing list ### 50. Effortless Email Verification with Kickbox **Rating:** 5.0/5.0 stars **Reviewed by:** Jeff V. | Owner, Small-Business (50 or fewer emp.) **Validated Reviewer:** Validated through Google using a business email account **Incentivized:** This reviewer was offered a nominal incentive as thanks for completing this review. **Source: Seller invite:** Invitation from a seller or affiliate. This reviewer was offered a nominal incentive as thanks for completing this review. **Reviewed Date:** April 10, 2026 **What do you like best about Kickbox?** I use Kickbox for validating email addresses. It helps me not get fake emails. I find it super easy to set up and fast. The API is great as it made it super easy to plug into my system, and it works pretty darn well as is. I also use it with my software called Botmockups. **What do you dislike about Kickbox?** Nothing **What problems is Kickbox solving and how is that benefiting you?** Kickbox helps me avoid fake emails and is super easy to set up. The API integration made it easy to plug into my system. ## Kickbox Discussions - [What does Kickbox do?](https://www.g2.com/discussions/what-does-kickbox-do) - [Is never bounce free?](https://www.g2.com/discussions/is-never-bounce-free) - [What is kickbox verification?](https://www.g2.com/discussions/what-is-kickbox-verification) - [What is Kickbox API?](https://www.g2.com/discussions/what-is-kickbox-api) - [View Kickbox pricing details and edition comparison](https://www.g2.com/products/kickbox/reviews?page=2§ion=pricing&secure%5Bexpires_at%5D=2026-09-01+17%3A19%3A34+-0500&secure%5Bsession_id%5D=bd71ee86-5ef0-45fa-95b2-23187841e880&secure%5Btoken%5D=880063086f1215e1e97ec05e69e7a5ef5817068ec95b282d3d205fda02aae950&format=llm_user) ## Kickbox Features **Additional Functionality** - Third-Party Integrations - To-Do List - @mentions - Single Sign On - File Management - Activity Dashboard - Drag & Drop - Alerts/Notifications - Prioritization - Access Controls/Permissions - Screen Sharing - Content Management - Brainstorming - AI Copilot - File Transfer - Calendar Management - Status Tracking - Real-Time Notifications - Version Control - Task Management - Activity Tracking - Real Time Editing - Communication Management - Chat/Messaging - Tagging - Generative AI - Assignment Management - Task Scheduling - Project Management - Collaboration Tools - Workflow Management - Secure Data Storage - File Sharing - Document Storage - Task Progress Tracking - Discussions/Forums - Commenting/Notes - Reporting & Statistics - Contact Management - Video Conferencing - Progress Tracking - Mobile Access - API - Document Management - Customizable Branding **Generative AI** - Generative AI **Agentic AI - Email Verification** - Decision Making **Additional Functionality** - Email Management - CRM - Fraud Detection - Data Verification - Lead Management - Contact Database - Spam Detection - A/B Testing - Email Distribution - Disposable Email Detection - Activity Dashboard - Unsubscribe Database - Syntax Check - AI Copilot - Data Import/Export - Spam Analysis - Subscription Management - Campaign Segmentation - Secure Data Storage - Third-Party Integrations - Duplicate Detection - Email Templates - Real-Time Monitoring - Contact Management - Anti Spam - Recipient Validation - Drag & Drop - Delivery Tracking - Email Marketing - Email Alerts - Bulk Email Verification - Drip Campaigns - Activity Tracking - Data Capture and Transfer - Bounce Rate Analysis - Catch-all Server Detection - Customer Database - Single Email Verification - Monitoring - Bulk Send - Spam Blocker - Mailing List Management - Email Tracking - Reporting & Statistics - File Transfer - Real-Time Data - Real-Time Analytics - Compliance Management - API - Domain Check - Email Address Extraction ## Top Kickbox Alternatives - [ZeroBounce](https://www.g2.com/products/zerobounce/reviews) - 4.7/5.0 (1,357 reviews) - [BriteVerify](https://www.g2.com/products/briteverify/reviews) - [Emailable](https://www.g2.com/products/emailable/reviews) - 4.8/5.0 (262 reviews)