--- title: Kickbox Reviews meta_title: 'Kickbox Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 648 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: 648 scale: '5' date_modified: '2026-07-22' 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:** 648 ## 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 **What users like:** - Users value the **ease of use** of Kickbox, appreciating its simplicity and seamless integration for non-tech users. (129 reviews) - Users value the **efficient email verification** of Kickbox, ensuring only deliverable contacts for effective marketing. (49 reviews) - Users appreciate the **user-friendly interface** of Kickbox, which makes list uploading and validation quick and easy. (45 reviews) - Users appreciate the **easy setup** of Kickbox, enabling quick list clean-up and improved email deliverability. (40 reviews) - Users praise Kickbox for its **amazing data accuracy** , highlighting clear results that enhance usability and efficiency. (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 to be **too expensive** and prefer more affordable pricing options or a subscription model. (25 reviews) - Users find the **insufficient information** on risky emails frustrating, impacting their ability to make informed decisions. (13 reviews) - Users express concerns about **data accuracy** in Kickbox, noting issues with 'risky' statuses and hard bounces. (11 reviews) - Users note that **improvement is needed** as Kickbox misses disposable domains and lacks detailed reporting explanations. (11 reviews) - Users express concerns about **missing information** regarding email classifications and lack of insights for better decision-making. (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. Simple & fast & generally accurate **Rating:** 4.5/5.0 stars **Reviewed by:** Michael D. | Grand Guru, Small-Business (50 or fewer emp.) **Reviewed Date:** January 23, 2024 **What do you like best about Kickbox?** It is simple to use, and quick to execute a verification campaign. And it is reasonably priced. My entire customer list can be proofed periodically in a hour or two worth of time. **What do you dislike about Kickbox?** I have to do some spreadsheet manipulation to flag invalid emails. And of course this is the internet: what is invalid at this moment may be valid tonight, and vice versa. Most of that process is manually intensive. **What problems is Kickbox solving and how is that benefiting you?** It insures that my customer list has few if any invalid emails, thus maintaining the integrity of my outgoing email account, keeping my emailings from being considered SPAM. ### 2. Kickbox simple to use and well priced **Rating:** 5.0/5.0 stars **Reviewed by:** Richard G. | Director (Blue Sphere), Small-Business (50 or fewer emp.) **Reviewed Date:** December 19, 2024 **What do you like best about Kickbox?** The best thing is how simple it is to use, just upload you spreadsheet of contacts and let it run through them. **What do you dislike about Kickbox?** I don't have any dislikes, it's all good **What problems is Kickbox solving and how is that benefiting you?** Being able to clean contact list for valid and working email addreses ### 3. Reliable and Efficient Email Validation Solution **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Research | Small-Business (50 or fewer emp.) **Reviewed Date:** March 02, 2025 **What do you like best about Kickbox?** Kickbox offers a seamless and highly accurate email verification process, ensuring that our email lists remain clean and deliverability rates stay high. **What do you dislike about Kickbox?** It would be great to see more detailed reporting on why certain emails are flagged as undeliverable. **What problems is Kickbox solving and how is that benefiting you?** Quick batch e-mail validations ### 4. Simple to use and delivers **Rating:** 5.0/5.0 stars **Reviewed by:** Jeremy B. | Director, Small-Business (50 or fewer emp.) **Reviewed Date:** March 26, 2025 **What do you like best about Kickbox?** Simplicity, so easy to use. They built it for non techy people like me **What do you dislike about Kickbox?** Nothing, compared to other platforms it works like a dream. **What problems is Kickbox solving and how is that benefiting you?** Reducing bounced emails and suspected spam rejects ### 5. Top End Email Scrubbing Great Signals **Rating:** 5.0/5.0 stars **Reviewed by:** Casey H. | Marketing Director, Small-Business (50 or fewer emp.) **Reviewed Date:** November 07, 2024 **What do you like best about Kickbox?** The best scrubbing data. Period. The downlads split by the quality type of the list is great. **What do you dislike about Kickbox?** The price could be a little bit better. But as the saying goes, you pay for what you get. **What problems is Kickbox solving and how is that benefiting you?** We are cleaning up our sending issues and making sure that we have the best data to work from ensuring our sending health isn't hurt. ### 6. Insightful service able to ensure quality data **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Broadcast Media | Small-Business (50 or fewer emp.) **Reviewed Date:** January 18, 2024 **What do you like best about Kickbox?** We can ensure that the email data we have is high quality and prevent customers from accidentally entering in invalid email addresses, securing reliable communication. **What do you dislike about Kickbox?** There is nothing about Kickbox we dislike. It works! **What problems is Kickbox solving and how is that benefiting you?** We have problems with customers sometimes not recognising transactions due to problems with reaching them via email. This ensures that we can send reliable email comms to customers so they can recognise transactions, ### 7. The best tool for email verification! **Rating:** 5.0/5.0 stars **Reviewed by:** Courtney C. | Owner, Publishing, Small-Business (50 or fewer emp.) **Reviewed Date:** January 25, 2024 **What do you like best about Kickbox?** What I like best about Kickbox is how easy it is to use and how many options for results it gives you. I run several monthly giveaways to grow my brand and the brand of other creatives. In doing so, we sometimes get junk emails submitted, and those are not something I want to share with my clients. We want real humans who are interested in our work. That's where Kickbox comes in. With Kickbox, I can upload my list and choose from four different results to get the best list of leads for each purpose. I've tried a few competitors, but I keep coming back to Kickbox because the price is right, the service is easy to use, and the customer support is always friendly and fast! **What do you dislike about Kickbox?** I find it's best to separate your list into confirmed leads and unconfirmed leads because I do get some undeliverable errors, especially on mobile addresses, even though the users are deliverable because they've confirmed their entry. Other than that, the only downside to Kickbox that I can think of is that I wish it integrated into my website so I wouldn't have to shuffle around my lists from my giveaway software to Sheets to Kickbox, and then back to Sheets again, but I realize that's a big ask. For the amount of times I use Kickbox, I really can't complain! It is my go-to! **What problems is Kickbox solving and how is that benefiting you?** Kickbox helps me weed out fake or spammy emails from users who sign up for my giveaways with less-than-genuine interest in hearing from the sponsors. Some people only want the freebie, regardless of what it is, and some people even like to sign up just to spam. These are not good leads for my clients, and sending emails to these addresses could result in high unsubscribe and bounce rates, which we all know is terrible for email marketing. ### 8. Save Yourself from Bounces, Protect Your Email Health **Rating:** 4.5/5.0 stars **Reviewed by:** Olivia N. | Marketing Coordinator, Mid-Market (51-1000 emp.) **Reviewed Date:** September 05, 2024 **What do you like best about Kickbox?** Kickbox has saved my email health on Hubspot. Checking my massive contact list of sometimes over 1,000 contacts has become a breeze. I appreciate how kickbox explains each level of contacts when checking my list. No more email bounces! **What do you dislike about Kickbox?** Since my lists are typically very large, it takes a while for the system to filter through my emails. Not complete downside since it get the job done. **What problems is Kickbox solving and how is that benefiting you?** I no longer have hard email bounces after filtering my list. This has boosted my email stat helth on Hubspot. ### 9. Took a testdrive with 100 names. Pretty slick. I signed up for 30,000 verifications. **Rating:** 5.0/5.0 stars **Reviewed by:** Vince P. | President, Small-Business (50 or fewer emp.) **Reviewed Date:** December 04, 2024 **What do you like best about Kickbox?** The trial run was easy and clear. I put through 99 names. 66 were clean. 44 opened my test email with no issues. **What do you dislike about Kickbox?** I'm now using Kickbox to clean up a list that dates back 25 years. While I'm using the Hubspot integration, so far it's not clear what my progress is. I did see a poor review from a Hubspot user from 6 months ago (July 2024). Fingers crossed mine it all is seamless. **What problems is Kickbox solving and how is that benefiting you?** Keeping me off the blacklist. ### 10. Clean Email Lists and Improved Deliverability with Kickbox **Rating:** 5.0/5.0 stars **Reviewed by:** Federico D. | Director, Sales Operations, Computer Software, Mid-Market (51-1000 emp.) **Reviewed Date:** May 16, 2024 **What do you like best about Kickbox?** I recently started using Kickbox.com to verify my email lists, and I'm impressed with the results! Here's what I like most: - Accurate Verification: Kickbox effectively identifies invalid or outdated email addresses. This helps ensure my email campaigns reach real people, improving deliverability and reducing bounces. - Easy to Use: Uploading my email list and getting results was a breeze. They offer a drag-and-drop interface and real-time API for seamless integration. - Pay-Per-Use: I appreciate their flexible pricing model. I only pay for the email addresses I verify, which is perfect for my needs. Overall, Kickbox is a valuable tool for anyone who wants to improve their email marketing efforts. It's helped me clean my lists, save money on unnecessary sends, and ultimately reach a more engaged audience. **What do you dislike about Kickbox?** We've had a great experience with Kickbox so far **What problems is Kickbox solving and how is that benefiting you?** Email verification, dedupe, and deliverability ### 11. Kickbox is part of our weekly techstack to validate email address to help with email deliverability. **Rating:** 2.5/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Enterprise (> 1000 emp.) **Reviewed Date:** May 28, 2024 **What do you like best about Kickbox?** I like seeing which of our customer contacts are outdated / not active. **What do you dislike about Kickbox?** I dislike the credit system. A subscription with one set monthly payment would improve our relationship with the platform. **What problems is Kickbox solving and how is that benefiting you?** We have super old contacts. Some of which have changed jobs and retired the email we have for them. It's good to exclude this group from future comms. ### 12. One of my favorite point solutions in Martech **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Computer Software | Mid-Market (51-1000 emp.) **Reviewed Date:** July 12, 2024 **What do you like best about Kickbox?** Kickbox does it's job VERY well, and is incredibly easy to set up and use. I ahve implemented this tool in my own instances as well as recommended it to clients as an easy, straightfoward and cost-effective way to keep databases fresh in terms of deliverable email addresses and preventing blocklists and spam trap suspensions. The integration with Marketo and Hubspot is one of the easiest webhooks I've ever used and is consisten and reliable. **What do you dislike about Kickbox?** I've been extremely happy with Kickbox for years, I have nothing negative to say at all about the product or team. **What problems is Kickbox solving and how is that benefiting you?** Kickbox is a part of our standard operating process to validate all new email addresses or updates occuring in the system, regardless of source. This immediately helps us identify invalid emails that could put our systems at risk of blocklisting or spam cop suspensions, and supporting the high level of email deliverability we expect from our teams. ### 13. Efficient service **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Consulting | Small-Business (50 or fewer emp.) **Reviewed Date:** January 09, 2025 **What do you like best about Kickbox?** That it is easy to use with hubspot integration, in terms of uploading and then downloading the checked list. **What do you dislike about Kickbox?** Feels a bit expensive. I am not a regular user and hence likely to try other systems that are also integrated with hubspot, as they will offer some free things when I start. **What problems is Kickbox solving and how is that benefiting you?** Email bouncing and hubspot getting upset with me. ### 14. Work Smarter not Harder **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Education Management | Small-Business (50 or fewer emp.) **Reviewed Date:** September 19, 2024 **What do you like best about Kickbox?** I recently had the pleasure of using Kickbox for our email verification needs, and I couldn’t be more impressed! As a business focused on maintaining a clean and effective email list, finding a reliable verification tool was essential. Kickbox exceeded my expectations in every aspect. The verification process is incredibly fast and remarkably accurate. I was amazed at how quickly it cleaned up our list, identifying invalid emails and providing real-time insights. This has helped us enhance our email deliverability significantly. **What do you dislike about Kickbox?** I have not found one yet. It makes my job easier. **What problems is Kickbox solving and how is that benefiting you?** I am not only able to verify emails for my organization, but can offer the cleaned list from the groups that submit them. ### 15. Kickbox: The Essential Tool for Maintaining a Clean and Effective CRM Database" **Rating:** 5.0/5.0 stars **Reviewed by:** Scotty S. | Owner, Small-Business (50 or fewer emp.) **Reviewed Date:** August 06, 2024 **What do you like best about Kickbox?** I like there easy to use dashboard. Nice to easily see how many credits I have left and funny enough I love that they have a pricing chart on their purchase page. This way I know whether I am better off buying a larger group in bulk for a client or two, or just getting as much as I need for a given project. **What do you dislike about Kickbox?** For an email deliverabiltiy service I am quite content with the way Kickbox works. **What problems is Kickbox solving and how is that benefiting you?** Kickbox addresses the critical issue of maintaining clean and up-to-date CRM databases, especially with high contact churn due to job changes. ### 16. Easy to clean lists for email sendings **Rating:** 4.0/5.0 stars **Reviewed by:** Mika S. | Sales Manager, Small-Business (50 or fewer emp.) **Reviewed Date:** January 14, 2025 **What do you like best about Kickbox?** Kickbox is easy to use and fast. I've used it weekly for years and it's been a blessing. **What do you dislike about Kickbox?** There isn't really anything I don't like about Kickbox. For my purposes it works well. Ease of use, customer support, list of features – I'm happy with all of them! **What problems is Kickbox solving and how is that benefiting you?** Kickbox helps me to clean email lists. ### 17. Quick, easy to use contact list verification **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Education Management | Small-Business (50 or fewer emp.) **Reviewed Date:** October 30, 2024 **What do you like best about Kickbox?** I liked the ease of use, fair pricing, and guarantee that they stand behind their results. **What do you dislike about Kickbox?** I would love more details on why certain contacts were deemed "risky". **What problems is Kickbox solving and how is that benefiting you?** It helps to find contac ts that won't bounce or be delivered to people no longer at the company. Helps put the focus on real contacts. ### 18. Very positive service and experience **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Mid-Market (51-1000 emp.) **Reviewed Date:** January 13, 2025 **What do you like best about Kickbox?** Kickbox's simplicity and user-friendly experience was fantastic in assisting with completing a comprehensive project in very short order. It's ease-of-use made deploying verifications across our entire user catalog incredibly simple and it's convenient integration made deployment fast and friendly. **What do you dislike about Kickbox?** I've not experienced a downside to the service. **What problems is Kickbox solving and how is that benefiting you?** Ensuring minimal email issues and limiting blacklisting. ### 19. Effective **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Computer Software | Small-Business (50 or fewer emp.) **Reviewed Date:** February 15, 2025 **What do you like best about Kickbox?** Easy to setup and get straight to what you need it for **What do you dislike about Kickbox?** Have to buy verification points to verify email addresses **What problems is Kickbox solving and how is that benefiting you?** Making it easy to be able clean email lists without having to manually do so ### 20. Effective and Quick Results **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Retail | Mid-Market (51-1000 emp.) **Reviewed Date:** November 15, 2024 **What do you like best about Kickbox?** - Easy to use from an admin dashboard perspective - Quick consistent support - The ability to download filtered results and refine to what you need - Implementation was easy and I was able to upload a clean-up list quick to e-blast - API was seamless with an email software we were using **What do you dislike about Kickbox?** Nothing that I can think of right now, but will add if something comes up. **What problems is Kickbox solving and how is that benefiting you?** Filter out the email SPAM and non-engaged email users for cleaner deliverability. ### 21. Worked well. **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Financial Services | Small-Business (50 or fewer emp.) **Reviewed Date:** October 26, 2024 **What do you like best about Kickbox?** Kickbox was easy to use and the results were fast. It was also very easy to connect to my HubSpot account and pull my email lists right from there. **What do you dislike about Kickbox?** I wanted to know which email addresses were undeliverable. I was able to figure out that I had to download all details and then sort. **What problems is Kickbox solving and how is that benefiting you?** I attempted to conduct an email campaign through HubSpot and the campaign was terminated early due to the number of undeliverable messages. I was able to clean the list up quickly and resume the campaign. ### 22. Super easy, fast and reliable **Rating:** 5.0/5.0 stars **Reviewed by:** Christina V. | Growth Marketing Consultant and Mentor, Small-Business (50 or fewer emp.) **Reviewed Date:** August 30, 2024 **What do you like best about Kickbox?** The software was very easy to use and cleaned up my email list within a matter of minutes and I was ready to send campaigns **What do you dislike about Kickbox?** Nothing, it was exactly what I was looking for **What problems is Kickbox solving and how is that benefiting you?** Sometimes your client will give you a list of emails that aren't the best quality because the list hasn't been updated or is old. With Kickbox, I was able to clean the list quickly and have it automatically imported into HubSpot again ### 23. Very accurate and helpful **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Consumer Goods | Small-Business (50 or fewer emp.) **Reviewed Date:** January 10, 2025 **What do you like best about Kickbox?** Easy and fast review of email addresses. Different ways to export the results. Very insightful. Data will be removed as well after a specific timeframe. **What do you dislike about Kickbox?** Nothing at this point, it was clear and the programme was referred by another company. **What problems is Kickbox solving and how is that benefiting you?** checking the validity of email addresses. ### 24. Reliable tool for email verification maintenance **Rating:** 5.0/5.0 stars **Reviewed by:** Lauren M. | VP, Marketing, Mid-Market (51-1000 emp.) **Reviewed Date:** August 16, 2024 **What do you like best about Kickbox?** We chose Kickbox because of its native Hubspot integration, and we've had a great experience running regular email validations to ensure we're purging bad email addresses from our database. It's easy to use as a self-serve tool and works quickly. Kickbox is now a valuable part of our email tech stack. **What do you dislike about Kickbox?** Nothing comes to mind. We've had a great experience with Kickbox. **What problems is Kickbox solving and how is that benefiting you?** With Kickbox, we're able to check large lists of emails to validate whether they're "good" emails (e.g. ones we should continue to send to), whether they're no longer active, and whether they're suspicious. As owned channels become even more important, email deliverability is a top priority for our marketing team and Kickbox helps us stay healthy. ### 25. Very easy to use and high accuracy **Rating:** 4.0/5.0 stars **Reviewed by:** Juliane M. | Head of Marketing, Small-Business (50 or fewer emp.) **Reviewed Date:** October 14, 2024 **What do you like best about Kickbox?** I used Kickbox with the Hubspot integration. I wanted to clean up an old list to avoid a high bounce rate. The process is very easy, you're done within a few clicks. **What do you dislike about Kickbox?** I'd use it more if there were better package deals. **What problems is Kickbox solving and how is that benefiting you?** Cleans email list fast and is very reliable. ### 26. Easy to use for client with HubSpot with one downside **Rating:** 4.5/5.0 stars **Reviewed by:** Wesley G. | CRM Contractor, Small-Business (50 or fewer emp.) **Reviewed Date:** November 07, 2024 **What do you like best about Kickbox?** HubSpot integration is good. Price is good. Efficient. Easy for user. **What do you dislike about Kickbox?** Recently, emails designated 'Risky' sent through HubSpot successfully with low-ish bounces. Perhaps these were deliverable?! **What problems is Kickbox solving and how is that benefiting you?** Getting a higher delivered rate. Setting 'marketing contacts' in HubSpot. ### 27. Kickbox has been fast, simple, and incredibly straightforward in helping me verify email addresses. **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Financial Services | Small-Business (50 or fewer emp.) **Reviewed Date:** November 12, 2024 **What do you like best about Kickbox?** The speed - I can verify my lists in no time **What do you dislike about Kickbox?** Accuracy needs improvement - it may not always catch every invalid email address, especially in cases of temporary or disposable emails. **What problems is Kickbox solving and how is that benefiting you?** Kickbox helps me ensure my email list is clean and accurate by verifying email addresses, reducing bounce rates, and improving deliverability. This saves time, optimizes outreach, and boosts engagement by ensuring emails reach valid, engaged contacts. ### 28. Easy Email Verification to Keep Your Domain Healthy **Rating:** 4.5/5.0 stars **Reviewed by:** Jay H. | VP of Marketing, Mid-Market (51-1000 emp.) **Reviewed Date:** November 06, 2024 **What do you like best about Kickbox?** Its ease of use and its integration with HubSpot **What do you dislike about Kickbox?** No downsides - really easy to use and implement. **What problems is Kickbox solving and how is that benefiting you?** We had an old and outdated email list and Kickbox helped us to clean it. ### 29. kickbox review **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) **Reviewed Date:** January 20, 2025 **What do you like best about Kickbox?** Ease of use to select email lists to check and integration into CRM. **What do you dislike about Kickbox?** No real dislikes yet. Is available when i need to use it. **What problems is Kickbox solving and how is that benefiting you?** Reduce email non-delivery for markting and lead generation. ### 30. Recently started using kickbox, and it has already improved filtering out malefactors **Rating:** 3.5/5.0 stars **Reviewed by:** Verified User in Events Services | Small-Business (50 or fewer emp.) **Reviewed Date:** October 06, 2024 **What do you like best about Kickbox?** Kickbox was quite easy to implement and get it running in our platform. The pricing is also quite fair, no subscription, you pay as you use. The configuration options provided makes it easy to fine tune based on our needs. **What do you dislike about Kickbox?** Would be great to improve the dashboard with more in depth information of which emails were verified, timestamp, and the result, to make it easier to understand what is being filtered out and what we may need to fine tune. **What problems is Kickbox solving and how is that benefiting you?** Email verification during user sign-up ### 31. Easy and seamless **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Accounting | Small-Business (50 or fewer emp.) **Reviewed Date:** August 15, 2024 **What do you like best about Kickbox?** We've been using Kickbox for about 6 months now, first through our Agency, and now with our own account. Being able to scrub our lists and remove risky or undeliverable emails before running an email campaign has helped us increase our deliverability and reduce bounces. The tool is very affordable and easy to use and super simple to implement! **What do you dislike about Kickbox?** We don't have any thing we've discovered so far, that we don't like about Kickbox. **What problems is Kickbox solving and how is that benefiting you?** We are able to upload our email mailing lists and use the tool to flag any risky or undeliverable emails before we run our email campaigns. This help us increase accuracy and protect our email domain. ### 32. Solid email verification that protects your domain reputation **Rating:** 5.0/5.0 stars **Reviewed by:** Armando H. | Manager, Small-Business (50 or fewer emp.) **Reviewed Date:** August 13, 2024 **What do you like best about Kickbox?** Kickbox email verification service is integrated in our workflow as a stage that give us confidence that our target contacts email are valid in order to preserve our domain reputation. We typically achieve delivery rates of 96% on average. **What do you dislike about Kickbox?** I cannot think of a downside for the moment **What problems is Kickbox solving and how is that benefiting you?** Kickbox identifies valid emails, the benefit is to preserve our sending domain reputation and help us to be compliant with sender rules avoiding sending issues ### 33. Kickbox Review **Rating:** 5.0/5.0 stars **Reviewed by:** charles d. | Managing Partner, Small-Business (50 or fewer emp.) **Reviewed Date:** January 13, 2025 **What do you like best about Kickbox?** Kickbox works great for cleansing email lists before sending them. I love using it! **What do you dislike about Kickbox?** No dislikes, everything works great! This program works really well! **What problems is Kickbox solving and how is that benefiting you?** Removing the old and bad emails from campaigns before sending emails. ### 34. Great and easy to use **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Hospital & Health Care | Mid-Market (51-1000 emp.) **Reviewed Date:** November 01, 2024 **What do you like best about Kickbox?** I loved that kickbox was so so easy to use, we were easily able to integrate it in within our software and verification processes. **What do you dislike about Kickbox?** It is kind of difficult to do our own verification of the emails. **What problems is Kickbox solving and how is that benefiting you?** We used to get marked as spam because of the kinds of emails that were sent and that was because we sent alot of emails to unverified emails but now that problem was solved. ### 35. Kickboxing is a valuable tool to keep your Hubspot account in good standing and compliance **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Financial Services | Mid-Market (51-1000 emp.) **Reviewed Date:** October 16, 2024 **What do you like best about Kickbox?** Kickbox helps us keep our HubSpot account in good standing. By validating email addresses before we add them to our list, Kickbox helps us avoid bounces and protect our sender reputation. **What do you dislike about Kickbox?** So far nothing but I need to use it more. **What problems is Kickbox solving and how is that benefiting you?** Sales reps were entering in email addresses but not really maintaining them which lead to a couple of email sends with high bounce rates. Running these lists through Kickboxing helps me removed the bounces before email send. ### 36. Good Product **Rating:** 3.0/5.0 stars **Reviewed by:** Verified User in Translation and Localization | Mid-Market (51-1000 emp.) **Reviewed Date:** January 13, 2025 **What do you like best about Kickbox?** It does the job in cleaning up emails to help improve deliverability **What do you dislike about Kickbox?** The UI is a little clunky for Kickbox. All in all its a great utility tool. **What problems is Kickbox solving and how is that benefiting you?** Kickbox helps improve email deliverability. ### 37. Exactly what I needed and easy to get started **Rating:** 4.0/5.0 stars **Reviewed by:** Sarah C. | Manager, Demand Generation & Sales Enablement, Small-Business (50 or fewer emp.) **Reviewed Date:** June 28, 2024 **What do you like best about Kickbox?** There were so few steps to get started using Kickbox. We are just getting started with email campaigns using our database and needed to be sure we weren't sending to old email addresses. It was super easy to use and the results were easy to understand. I likes that they had an. easy to find glossary of terms they use in the results. **What do you dislike about Kickbox?** There wasn't anything I was dissatisfied with! We will be using it going forward to ensure our database is clean. **What problems is Kickbox solving and how is that benefiting you?** Ensuring deliverability to potentially invalid email addresses in our database. ### 38. Effortless API Integration for User Signup Verification **Rating:** 5.0/5.0 stars **Reviewed by:** Handy M. | Founder, CEO & CTO, Small-Business (50 or fewer emp.) **Reviewed Date:** May 16, 2024 **What do you like best about Kickbox?** We've been using Kickbox for over two years to verify user signups through their API, and it has been incredibly reliable. The ease of integration and the pay-as-you-go service make it a cost-effective solution for our needs. Kickbox provides accurate and fast email validation, which helps us maintain the quality of our user base. Overall, it has streamlined our email verification process, and we are very satisfied with its performance. **What do you dislike about Kickbox?** I have no dislikes about Kickbox. It has consistently met our needs and expectations for email verification. **What problems is Kickbox solving and how is that benefiting you?** Kickbox solves the critical problem of ensuring email validity during user signups. By using their API, we can verify email addresses in real-time, preventing fake or invalid emails from entering our system. This has significantly reduced bounce rates and improved the deliverability of our communications. The pay-as-you-go model allows us to scale efficiently without incurring unnecessary costs. Overall, Kickbox has enhanced the quality of our email list, leading to better engagement with our users and more effective communication strategies. ### 39. Easy to implement, very transparent cost structure, acceptably fast **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Market Research | Small-Business (50 or fewer emp.) **Reviewed Date:** May 16, 2024 **What do you like best about Kickbox?** The API implementation is unbeliveably easy and will take even novice coders a couple minutes to implement. Their verification API works very fast, even in case the SMTP server takes a while to respond. Honestly, this is fantastic -- it makes screening our lists so much faster than other solutions. Additionally, their pricing is very fair, you don't pay for API calls they can't distinguish between deliverable, risky, and undeliverable. **What do you dislike about Kickbox?** They have a 95% delivery guarantee, and though we never complained about it, it's more ~90%, at least for our email lists. That means if we send 100 emails labeled by kickbox as "deliverable", only 90 of those actually get delivered. 10 bounce because the address is not connected to an active mailbox. Still good enough though. **What problems is Kickbox solving and how is that benefiting you?** We are a advanced representative surveying company and receive a ton of mailing lists from our clients. To not lower our sender reputation scores we use Kickbox to pre-vet those lists. ### 40. Multi-time user and referrer **Rating:** 5.0/5.0 stars **Reviewed by:** Chris R. | Principal, Small-Business (50 or fewer emp.) **Reviewed Date:** October 04, 2024 **What do you like best about Kickbox?** Easy to use, fast, and found to be reliable when we look at the results. **What do you dislike about Kickbox?** Nothing really to dislike about it thus far. I recommend it often. **What problems is Kickbox solving and how is that benefiting you?** Reduce spam and unsubscribe rates. Help get our marketing emails delivered and maintain sender health score. ### 41. Amazing **Rating:** 5.0/5.0 stars **Reviewed by:** Jen D. | Directrice de communication, Small-Business (50 or fewer emp.) **Reviewed Date:** September 10, 2024 **What do you like best about Kickbox?** The most helpful thing about kickbox is the time it saves us and the customer service is very responsive. **What do you dislike about Kickbox?** Nothing to report at the moment. My first expérience was great ! **What problems is Kickbox solving and how is that benefiting you?** It allowed me to clean up my contacts. So when I prepare my future email campaign, I am sure to have relevant mailings. ### 42. Easy-to-understand platform with nice UI & UX **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Financial Services | Mid-Market (51-1000 emp.) **Reviewed Date:** May 14, 2024 **What do you like best about Kickbox?** Kickbox was straightforward to use compared to other email validation tools I've tried in the past. It's clear how much you're spending on a list verification, and if you need more credits, they make it really easy to purchase credits in your verification process (surprisingly not so clearcut in other competitive platforms). Once the list is done going through the verification process, the breakdown of statuses is easy to understand. Their pricing is also very reasonable. **What do you dislike about Kickbox?** It would be helpful to know how Kickbox determines the validity of an email address. Not sure if they publish their processes on how they go about verifying an email address, but easy access to this information would help establish more of my trust in the platform. **What problems is Kickbox solving and how is that benefiting you?** Kickbox is helping us sift our email data into buckets that allows us to determine quality so that we can take appropriate action. They're helping us to protect our email health. ### 43. I use Kickbox to verify emails for my email marketing campaigns all the time. Its great! **Rating:** 5.0/5.0 stars **Reviewed by:** Irina K. | Real Estate Agent, Small-Business (50 or fewer emp.) **Reviewed Date:** January 14, 2025 **What do you like best about Kickbox?** It is quick, easy to use and all emails are verified and active. **What do you dislike about Kickbox?** Hord to track if the deliverablity is 100% accurate **What problems is Kickbox solving and how is that benefiting you?** Veryfying emails for my email marketing campaigns. ### 44. Great way to clean up! **Rating:** 5.0/5.0 stars **Reviewed by:** Rescue the A. | Office Assistant, Small-Business (50 or fewer emp.) **Reviewed Date:** October 10, 2024 **What do you like best about Kickbox?** It was easy to upload, run and download lists **What do you dislike about Kickbox?** Too many emails came back "unknown". I am paying by email to clean lists, it would be good to at least get a yes or no on deliverability. **What problems is Kickbox solving and how is that benefiting you?** It has reduced my bounce rate. I was migrating from one email platform to another, and the lists were not very clean, causing the new platform to suspend my account. After Kickbox I am up and running again! ### 45. Good Integration with Hubspot **Rating:** 4.5/5.0 stars **Reviewed by:** Karen L. | Director, Marketing & Operations, Small-Business (50 or fewer emp.) **Reviewed Date:** January 19, 2024 **What do you like best about Kickbox?** I had a hard time at first integrating into my HubSpot account. The Hubspot CS team recommended me to use Kickbox. So, it came highly recommended. I emailed customer support and after a few emails and fixes, we made it work for my database. It took me two minutes to complete the email verification I wanted. It's easy to use. I would recommend to my colleagues. It was inexpensive and easy to do a quick cleanup through Kickbox. **What do you dislike about Kickbox?** The CS team was in the middle of fixing integration so it took longer than anticipated to get set up. I wish it could go back into your database and place a note if the email address is bouncing. I had to have a colleague go back in and delete them manually. **What problems is Kickbox solving and how is that benefiting you?** Kickbox helped with verification, bouncing, and alerted to the risky emails. ### 46. The fastest and safest way I have found to verify email address are accurate and reliable. **Rating:** 5.0/5.0 stars **Reviewed by:** Thomas K. | Digital Marketing Manager, Mid-Market (51-1000 emp.) **Reviewed Date:** January 16, 2025 **What do you like best about Kickbox?** User-friendly interface and speed of results. **What do you dislike about Kickbox?** At time running 2 lists test can slow down your results. **What problems is Kickbox solving and how is that benefiting you?** making sure our email database is clean and accurate. ### 47. Easy and saves our marketing email rating! **Rating:** 5.0/5.0 stars **Reviewed by:** Ashley L. | Publisher, Small-Business (50 or fewer emp.) **Reviewed Date:** July 02, 2024 **What do you like best about Kickbox?** We love using kickbox before sending out large marketing emails, it saves our overall scores and ratings in the long run and helps us target contacts that need updating. We appreciate the affordable option to clean emails for our small business. **What do you dislike about Kickbox?** Sometimes downloading the lists can be confusing for unseasoned users. **What problems is Kickbox solving and how is that benefiting you?** Helps us verify that our email list is clean and up to date! It is super easy and better for the health of our marketing and deliverability to use kickbox before sending out large emails. ### 48. Kickbox Review **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Financial Services | Mid-Market (51-1000 emp.) **Reviewed Date:** January 13, 2025 **What do you like best about Kickbox?** We like the simplicity of utilizing the system. **What do you dislike about Kickbox?** The user interface could be updated a bit. **What problems is Kickbox solving and how is that benefiting you?** An additional resource to check whether an email address is valid. ### 49. Great Experience **Rating:** 5.0/5.0 stars **Reviewed by:** Hamza s. | Senior Analyst, Enterprise (> 1000 emp.) **Reviewed Date:** November 01, 2024 **What do you like best about Kickbox?** It helped us scrub our emails quickly and efficiently **What do you dislike about Kickbox?** That I didn't know about it sooner. I could have avoided alot of headaches **What problems is Kickbox solving and how is that benefiting you?** Avoiding spam ### 50. Easy to use, set and forget **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Automotive | Mid-Market (51-1000 emp.) **Reviewed Date:** May 22, 2024 **What do you like best about Kickbox?** It's easy to use and helps make sure our emails reach real people. It checks our email lists to find and remove bad addresses, which means fewer emails bounce back and better email list hygene. This makes your email campaigns more efficient. Kickbox works well with many email services and is a helpful tool for keeping your email list clean. **What do you dislike about Kickbox?** It would be nice to have a slightly higher level of customer support or check-ins. Sometimes the software just runs for months and months and we forget about it - which is a good thing, but it's easy to forget implementation steps and additional use cases for the software. A 6 monthly check in would be nice. **What problems is Kickbox solving and how is that benefiting you?** Big reduction in bad emails - this means fewer bounces and more opens - which in turn means better email list hygene and CRM deliverability. ## 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=8&qs=pros-and-cons§ion=pricing&secure%5Bexpires_at%5D=2026-07-23+00%3A06%3A25+-0500&secure%5Bsession_id%5D=414ba7a9-ef5b-483e-a7ed-29c53973e1ac&secure%5Btoken%5D=8306fee1d943a30863a6308c1c76699323148423d98c7d6de31baa9925bfa69e&format=llm_user) ## Kickbox Integrations - [ActiveCampaign](https://www.g2.com/products/activecampaign/reviews) - [Auth0](https://www.g2.com/products/auth0/reviews) - [AWeber](https://www.g2.com/products/aweber/reviews) - [Benchmark Email](https://www.g2.com/products/benchmark-email/reviews) - [Braze](https://www.g2.com/products/braze/reviews) - [Campaign Monitor](https://www.g2.com/products/campaign-monitor/reviews) - [Campaign Monitor Commerce](https://www.g2.com/products/campaign-monitor-commerce/reviews) - [Cognism](https://www.g2.com/products/cognism/reviews) - [Constant Contact](https://www.g2.com/products/constant-contact/reviews) - [Cordial](https://www.g2.com/products/cordial/reviews) - [Customer.io](https://www.g2.com/products/customer-io/reviews) - [Digioh](https://www.g2.com/products/digioh-digioh/reviews) - [Dotdigital](https://www.g2.com/products/dotdigital/reviews) - [Drip](https://www.g2.com/products/drip/reviews) - [Dynamics 365 Sales](https://www.g2.com/products/dynamics-365-sales/reviews) - [GetResponse](https://www.g2.com/products/getresponse/reviews) - [HubSpot Data Hub](https://www.g2.com/products/hubspot-data-hub/reviews) - [HubSpot Marketing Hub](https://www.g2.com/products/hubspot-marketing-hub/reviews) - [HubSpot Sales Hub](https://www.g2.com/products/hubspot-sales-hub/reviews) - [iContact](https://www.g2.com/products/icontact/reviews) - [Iterable](https://www.g2.com/products/iterable/reviews) - [Klaviyo](https://www.g2.com/products/klaviyo/reviews) - [MailerLite](https://www.g2.com/products/mailerlite/reviews) - [Sailthru by Marigold](https://www.g2.com/products/sailthru-by-marigold/reviews) - [Sendloop](https://www.g2.com/products/sendloop/reviews) - [Symfony](https://www.g2.com/products/symfony/reviews) - [VASPP BREVO](https://www.g2.com/products/vaspp-brevo/reviews) - [WordPress.org](https://www.g2.com/products/wordpress-org/reviews) - [Yotpo](https://www.g2.com/products/yotpo/reviews) - [Zapier](https://www.g2.com/products/zapier/reviews) ## Kickbox Features **Agentic AI - Email Verification** - Decision Making ## Top Kickbox Alternatives - [ZeroBounce](https://www.g2.com/products/zerobounce/reviews) - 4.7/5.0 (1,354 reviews) - [BriteVerify](https://www.g2.com/products/briteverify/reviews) - 4.2/5.0 (73 reviews) - [Emailable](https://www.g2.com/products/emailable/reviews) - 4.8/5.0 (262 reviews)