--- title: MailboxValidator Reviews meta\_title: 'MailboxValidator Reviews 2026: Details, Pricing, & Features | G2' meta\_description: Filter 16 reviews by the users' company size, role or industry to find out how MailboxValidator works for a business like yours. aggregate\_rating: rating\_value: 3.7 review\_count: 16 scale: '5' date\_modified: '2026-08-07' parent\_category: name: Collaboration & Productivity url: https://www.g2.com/categories/collaboration-productivity --- # MailboxValidator Reviews & Product Details MailboxValidator is an easy to use email address validation service to clean up email lists. * * * Seller [MailboxValidator](https://www.g2.com/sellers/mailboxvalidator) Discussions [MailboxValidator Community](https://www.g2.com/products/mailboxvalidator/discuss) Overview by Kim Loong Liew (Founder of Hexasoft Development Sdn. Bhd.) Show More ## Value at a Glance Averages based on real user reviews. ### Perceived Cost $$$$$ [ View More Pricing Information ](https://www.g2.com/products/mailboxvalidator/pricing) ## Top-Rated Alternatives [ ![ZeroBounce](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "ZeroBounce") ZeroBounce 4.7/5(1,368) ](https://www.g2.com/products/zerobounce/reviews) [ ![MailerLite](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "MailerLite") MailerLite 4.6/5(1,113) ](https://www.g2.com/products/mailerlite/reviews) [ ![Kickbox](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Kickbox") Kickbox 4.5/5(658) ](https://www.g2.com/products/kickbox/reviews) [ View All Alternatives ](https://www.g2.com/products/mailboxvalidator/competitors/alternatives) ## User Insights Average based on 16 real user reviews. Perceived Cost $$$$$ [Log in to unlock pricing and user insights](/login) ![Alexander D.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Alexander D.") AD Alexander D. Sales And Marketing Specialist Information Technology and Services Small-Business (50 or fewer emp.) 4/12/2019 "simple email validator" 4/5 What do you like best about MailboxValidator? 1. Have a free plan to test the service on enough email addresses(300, not 10 or something) 2. API is quite simple to use and they have ready to use SDKs Review collected by and hosted on G2.com. What do you dislike about MailboxValidator? I think "Bulk" plans (on which integrations with email services are available) are quite expensive compared to "API" plans I use. Review collected by and hosted on G2.com. Recommendations to others considering MailboxValidator: As it has a free plan you can literally test it against other email validators and see if it works correctly in your case. Review collected by and hosted on G2.com. What problems is MailboxValidator solving and how is that benefiting you? Validating some old emails so it won't be any problems at the side of email marketing software that there are too many bounced emails (as they may suspend account because of that). So it is perfect for warming up old inactive subscribers. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Verified User in E-Learning](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in E-Learning") UE Verified User in E-Learning Small-Business (50 or fewer emp.) 6/6/2019 "Good and easy to use" 3.5/5 What do you like best about MailboxValidator? I like it because it's easy to use and it really works good for my clients. But also you can try for free the trial option and give it a try without having to purchase the whole product at once Review collected by and hosted on G2.com. What do you dislike about MailboxValidator? In the trial mode I have notice that there were invalid mails on the list..but just a free. I think with the full option this may be solved Review collected by and hosted on G2.com. Recommendations to others considering MailboxValidator: It is good to use at least try the trial option that is free and see if you like it for the company or not. Review collected by and hosted on G2.com. What problems is MailboxValidator solving and how is that benefiting you? I have less invalid mails ion the list although with the trial mode I still got some on it. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Donald D.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Donald D.") DD Donald D. Media Specialist Marketing and Advertising Small-Business (50 or fewer emp.) 6/3/2018 "Useful and Helpful Tool" 3.5/5 What do you like best about MailboxValidator? I like MailboxValidator because it helps to make sure my email list is clean and that each email on my mailing list is verified. It has a lot of paid features, but the email provider checker is free. Another feature that I like is the duplicate email remover. This is a really good feature to have when you are incorporating multiple lists of emails together. Overall, it is really simple to use and easy to get started with. Review collected by and hosted on G2.com. What do you dislike about MailboxValidator? One big thing that I do not like about MailboxValidator is that it doesn't not verify a large list. You have to break down a larger list into smaller ones for the program to be able to handle all of the emails. If you have to send a lot of emails then the pricing can be somewhat expensive. It can also take a substantial amount of time to process things such as cleaning lists. Review collected by and hosted on G2.com. Recommendations to others considering MailboxValidator: MailboxValidator is worth trying, especially if you are sending a large amount of emails each day. It can be expensive but the features are worth the money. Review collected by and hosted on G2.com. What problems is MailboxValidator solving and how is that benefiting you? I use MailboxValidator to verify my mailing list. I have seen a large reduction in duplicate emails and so called bounce emails. Review collected by and hosted on G2.com. Show More Current UserValidated ReviewerIncentivizedSource: G2 invite ![Nishant G.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Nishant G.") NG Nishant G. CEO @ Growtomation.in Small-Business (50 or fewer emp.) 2/25/2019 "Decent but I find it bit expensive" 3.5/5 What do you like best about MailboxValidator? Email validators have one job to do and I think mailboxvalidator does it really well. I never had any complaint about the quality. Review collected by and hosted on G2.com. What do you dislike about MailboxValidator? I find it a bit expensive. They should re-evaluate their pricing. Review collected by and hosted on G2.com. What problems is MailboxValidator solving and how is that benefiting you? While running an email marketing campaign we often need to check the overall quality of the emails to increase the deliverability. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ![Verified User in Insurance](/assets/icons/anonymous-avatar-purple-4ae1032bdb50ee5682003170c8184aee790d25958bd397abbd384ba52c596a7b.svg "Verified User in Insurance") AI Verified User in Insurance Mid-Market (51-1000 emp.) 4/15/2019 "Great Service to Reduce Invalid emails" 3.5/5 What do you like best about MailboxValidator? Its quick and easy service to filter mass lists for emails. It removes invalid emails easily. Review collected by and hosted on G2.com. What do you dislike about MailboxValidator? Nothing - the api integration makes this tool a breeze to use. It was simple and quick as well. Review collected by and hosted on G2.com. Recommendations to others considering MailboxValidator: Great Tool - Definitely worth the cost. Review collected by and hosted on G2.com. What problems is MailboxValidator solving and how is that benefiting you? We are able to use our monthly email allotments from our SMTP more efficiently. This has also improved out open email rates and response rates. Review collected by and hosted on G2.com. Show More Validated ReviewerSource: Seller invite ![Mohammed Sharjeel S.](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Mohammed Sharjeel S.") MS Mohammed Sharjeel S. Head of Global Marketing Mid-Market (51-1000 emp.) 3/5/2019 "Good tool for email id validation" 4/5 What do you like best about MailboxValidator? Its a decent tool to validate email ids thought with some glitches. Review collected by and hosted on G2.com. What do you dislike about MailboxValidator? Nothing much to dislike. However, the results were very similar to some free versions available. Would have expected more. Review collected by and hosted on G2.com. What problems is MailboxValidator solving and how is that benefiting you? We used it to check validity of email addresses to decrease chances of high bounce rates. Review collected by and hosted on G2.com. Show More Validated ReviewerIncentivizedSource: G2 invite ## Questions about MailboxValidator? Ask real users or explore answers from the community Get practical answers, real workflows, and honest pros and cons from the G2 community or share your insights. [ Ask about MailboxValidator ](https://www.g2.com/products/mailboxvalidator/discussions/new) GU Guest User What is MailboxValidator used for? 0 Upvotes 0 [ Join the conversation ](https://www.g2.com/discussions/what-is-mailboxvalidator-used-for) [ View all Discussions ](https://www.g2.com/products/mailboxvalidator/discuss) ##### Pricing Pricing details for this product isn’t currently available. Visit the vendor’s website to learn more. 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