# MailBoxValidator Reviews 2026. Verified Reviews, Pros & Cons | Capterra > Is MailBoxValidator the right Email Management solution for you? Explore 52 verified user reviews from people in industries like yours to make a confident choice. Source: https://www.capterra.com/p/152461/MailBoxValidator/reviews --- MailBoxValidator 4.5 (52) Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team. [Learn more](https://www.capterra.com/our-story/) * * * Last updated March 13th, 2026 # Reviews of MailBoxValidator Ease of use 4.6 Customer Service 4.1 ## Pros and Cons in Reviews Nikita V Marketing Manager CRMMachinery, 11 - 50 employeesUsed the software for: 1-2 years. “Helped us build more robust database of our customers and precheck new contacts.“ June 30, 2024 AN Atharva N FounderMarketing and Advertising, 2 - 10 employeesUsed the software for: Less than 6 months. “It provides single email validation, disposable, and a free email validation API.“ July 22, 2022 AN Atharva N FounderMarketing and Advertising, 2 - 10 employeesUsed the software for: Less than 6 months. “The overall is review of Mailboxvalidator is good and is the best option for businesses to maintane there email list.“ July 22, 2022 AN Atharva N FounderMarketing and Advertising, 2 - 10 employeesUsed the software for: Less than 6 months. “The overall is review of Mailboxvalidator is good and is the best option for big businesses to maintan there email list.“ July 22, 2022 ## Showing most helpful reviews Showing 1-25 of 52 Reviews Sort by: Most Helpful Rating Company Size Reviewer's Role Length of Use Frequency of Use Nikita V. Marketing Manager CRM Machinery Used the software for: 1-2 years ### "Solid Mailbox Validator" June 30, 2024 4.0 Pros Helped us build more robust database of our customers and precheck new contacts. Improved our email campaigns values and deliverability. Cons We had to use Zapier instead of direct integration into our CRM. Not applicable to be used for every EU market seemingly by results. Review Source Garrett G. Marketing Manager - Technology Computer Software Used the software for: 2+ years ### "A Must for Email Marketing" August 10, 2018 5.0 I've used Mailbox Validator a few times over the last few years and have been very happy with it. It's certainly saved me a few angry emails from my Marketing Automation provider thanks to an improved bounce rate when sending to stale lists. I'd recommend this tool for anyone doing some list cleanup - and would also suggest pairing that with an email warm-up program to ensure that the lists don't go stale again! Pros Mailbox Validator (MV) is a fantastic way to ensure that the email addresses in your email marketing lists are legitimate. If you have a list of subscribers that you haven't touched in a while, Mailbox Validator allows you to reduce the number of email bounces that you get by filtering out emails that no longer exist (for example, if someone leaves a company). This ensures that your email server's IP address maintains a great sender reputation, giving your emails much better deliverability. MV is surprisingly easy to use. You just grab your list from your email marketing or marketing automation platform, run it through the software, and filter out the junk. Then re-upload the cleaned list back into your system. Cons While Mailbox Validator does a good job, keep in mind that won't give you a 100% cleaned list. The first time you send emails to your cleaned list, you might still have a number of bounces - in fact, you might still have a higher-than average bounce rate for your email program depending on how stale your list was. However, by running your list through MV, you will strip out the majority of bounces, ensuring that your email service provider doesn't come after you with a pitchfork. I do wish that MV formatted the data output a little better. The columns that it appends to your data file are somewhat cryptic and can, at times, be hard to know which columns I should take into consideration when determining which emails to strip out of my list. I'd like to see them make the column descriptions more user-friendly, and perhaps provide a bit more documentation to inform the user on which fields are the most important to consider when deciding whether an email should be removed from your list. Review Source CG Charles G. CEO Used the software for: Less than 6 months ### "Tried it against known good email addresses (gmail domain) and it failed, stopped using it" April 16, 2018 3.0 None so far Pros The idea is great as I mistype emails all the time. Thought was that I would validate these after entered into my software. Cons It is not reliable to use. Review Source Shane D. Small Business Owner Used the software for: Less than 6 months ### "Impressed and so good. I only wish I would have known about them sooner. " April 20, 2018 5.0 Pros As a small business owner time itself is an uphill battle that at times seems like you will never reach the summit or reach the lushus valley of green at the basin... Well, when your goal is to inform new prospects to not just increase your own business but to help other business owners as well, email has been a major marketing channel because let's face it, who still uses stamps anymore? When I was faced with over 45,000 emails accumulating over the years, it seems like an impossible challenge that would take approximately two and a half months to complete and that's working full days, we simply couldn't afford that much time away from the day to day business all to maintain a balance ourselves. We tried a handful of email valuation companies far and wide and none of them seemed reliable and overpriced to say the least, then we spoke with MailBoxValidators and we not only meet some genuine people but they got out job done in no time and it value outweighed the cost ten-fold. Thank you Cons None, stellar business and we will be a life long customer. Maybe the only suggestion would be to act a little meaner? Because they are just way to nice and genuine it felt like we've been doing business for decaded. Review Source Kapil V. IT Network Administrator Information Services Used the software for: 6-12 months ### "MailBoxValidator is Amazing tool" January 30, 2019 5.0 I have been using MailBoxValidator since 6 months it is very helpful to remove email id of any person. Pros Easy to remove correct email address. amazing software to remove email id. Cons most helpful software to remove email id Review Source Christoph Z. Entrepreneur Financial Services Used the software for: Less than 6 months ### "Works great and fast" January 18, 2019 5.0 I am using the API to prevent spamming with bad email adresses to myself. Additionally I am working on an validation with use of their API to ensure good lead quality when subscribing my newsletter list. Pros Checks not only the DNS like most other similar services do, but checks the mailserver too. Also pretty detailled response and not just "good" or "bad" like most others do. Cons The documenation is quite good in general but I would like to get more information about the response parameters. eg. what are the high\_risk\_keywords in is\_high\_risk response or how the reputation score gets calculated. Review Source Fregell H. Web Designer Information Technology and Services Used the software for: Less than 6 months ### "Reliable tool" September 7, 2018 4.0 validating emails for prevention getting annoying spams... Pros Quick and easy to use. Highly recommended. Cons Perhaps the prices and looking for more featured offers Review Source Stephanie S. Research Analyst Research Used the software for: Less than 6 months ### "Capterra the best" January 27, 2019 5.0 it helps me to make things more easier Pros It helps millions of people find the best business softwar Cons none so far. I love all the software´s features. Review Source Mojtaba E. Software Developer Higher Education Used the software for: I used a free trial ### "A decent email validation service" September 4, 2018 4.0 Pros ease of use. good API call response time. Cons you should have a more professional looking website and user dashboard. Review Source Chelsy P. Education Coordinator Used the software for: 6-12 months ### "Good email verification!" April 12, 2018 4.0 Pros I've been using Mailbox Validator for a few months and think it's great! I use a webmail and email client, so MBV has been helpful keep things organized. Cons It's sometimes difficult to use MBV without integration with our newsletter-sending client; I have to transfer the data between multiple programs. Review Source kH kalsoom H. mbbs student Alternative Medicine Used the software for: ### "I have solved many issues of mine through mailboxvalidator. It is very supportive n very accurate." April 12, 2018 5.0 The software is very best. Supportive, easy access to problem and their easy solution . Pros Quick response.easy access to it n quick solution of problems.easy login to the site. An easy method to problem solution.being helpfull I m very much impressed. Cons I think there is no something which is bad about this. I personally feel it's being a great help to problem .it is just too slow. I feel it just need a more fast speed to recognize the problem regarding mail and it must have the summary to what is the basic problem regarding our emails. Review Source FB Friday B. CEO Computer Software Used the software for: I used a free trial ### "Amazing email Validator Service" September 8, 2018 5.0 Very good Pros What I like most is that I can just upload my emails and its validated in less time and when i send emails ou there are no bounce back of emails. it's amazing Cons Simplicity of the interface of the platform Review Source JG Jonathan G. Marketing Consultant Marketing and Advertising Used the software for: 6-12 months ### "Use this routine tasks like weeding out bad domains, removing dupes from our list." April 16, 2018 4.0 Comprehensive report of domains, good-bad emails and removes duplicates Pros I love that i am able to improve email delivery success rate and reduce bad email reputation using this software. Cons Wish there was an API that plugged into Bronto, that would make it easier to use the two softwares together Review Source SB Somanna B. Blah Officer Computer Software Used the software for: Less than 6 months ### "Used the product for a while. easy to use but the results are not 100% accurate" September 12, 2018 4.0 Looking to clean old email lists. Pros ease of use, user interface, step by step instructions Cons The results are not a 100% accurate. Infact it is much lower. I understand that not all email IDs can be valideated but would appreciate a better accuracy range Review Source BP Bikash P. President Non-Profit Organization Management Used the software for: Less than 6 months ### "It makes easy to validate email " September 11, 2018 4.0 Pros This software is easy to use and effective if you are looking to filter out spam and unwanted emails. Cons Well, there is nothing that I least like about this software. Review Source LA Laura A. Managing Director Used the software for: ### "Great system really fast and accurate " August 29, 2016 5.0 needed to reduce my bounce rates as my database is for real estate and people leave the country and change jobs allot this is a great tool for me Pros fast Review Source MP Mani P. Chief Manager - Provider Management and Operations Management Consulting Used the software for: I used a free trial ### "Great service Great service, easy to use great results and 5 star" November 10, 2022 5.0 Higher engagement with brand Pros Reduce bounce rate by removing all invalid email addresses. Cons Cost affective. It is very expensive to subscribe. Review Source AS Andrew S. MD Hospitality Used the software for: Less than 6 months ### "Review by Andrew" July 6, 2016 5.0 I liked the product and keen to use again. It was great for cleaning up a slightly out dated list of data that I hadn't used for some time. I was able win some new business with the clean lists!! Pros Easy and simple to understand. Fast. Cons Nothing is too bad yet. Review Source SD Shannon D. SEO Artist Arts and Crafts Used the software for: 6-12 months ### "I would recommend MailboxValidator " June 6, 2023 5.0 My overall experience is just wonderful I could say it's like a kid waking up on Christmas day and seeing all their presents Pros There are quite a bit of features that I'm still finding on the program I didn't know it had, and I'm enjoying it, using this has made my emails so much easier to handle, and so much better to sort. Cons There's nothing I don't like all the features are great Review Source MB Matt B. Web Developer Staffing and Recruiting Used the software for: 2+ years ### "MailBox Validator is essential for marketing" July 22, 2022 4.0 Pros I use Mailbox Validator on several of my Zapier automation funnels. Everyone knows that bounces, fake addresses and spam emails poorly affect delivery of newsletters and marketing campaigns. Mailbox validator filters out these addresses ensuring only good quality contacts are added to my mailing list. Cons I would like to see it more prominent in the market. I was unaware of their API until doing this review. That could come in handy for other projects I am working on. Review Source AN Atharva N. Founder Marketing and Advertising Used the software for: Less than 6 months ### "Mailboxvalidator: Premium email validation for businesses" July 22, 2022 4.0 The overall is review of Mailboxvalidator is good and is the best option for big businesses to maintan there email list. Pros MailBoxValidator has a simple and easy to use dashboard which gives us premium email validation results. It has a single email validator as well as a bulk email validator. Mailboxvalidator validator validates emails by checking the email's syntax, domain existence, mx record, and server status. It also checks weather the email is Role, Free , Disposable, Greylisted, Suppressed, High risk or a Catch-all email. 16 different email marketing services can be integrated with the validator. It provides single email validation, disposable, and a free email validation API. The overall is review of Mailboxvalidator is good and is the best option for businesses to maintane there email list. It has free plan which can be used to validate 100 email addresses by just signing up with entering any payment details. Cons MailBoxValidator has costly compared to other email validation services. It though has a free plan, but to validate email list of more then 100 email addresses you need to buy its paid plans. The paid plans starts from $19.95 which can be used to validate email list of 1000 email addresses, and takes up to 4 hours to complete the validation. For free plan users their is only support through a contact forum, and for paid users their is a email support (they also have Knowledge Base resources). Review Source VR Verified Reviewer Marketing analyst Staffing and Recruiting Used the software for: 6-12 months ### "MailBoxValidator is genuinely good" April 22, 2019 4.0 I was having a lot of important contacts but the email addresses were not validated, since the data was old. But it helped me a lot in terms of validation those contacts. Pros It is one of the best tool to validate the email addresses. It's 100 free user plan is the very best thing to me. Cons The customer support is something disappointing. Rest the capabilities of the software is undoubtedly best. Review Source CD Chris D. Owner Information Technology and Services Used the software for: 6-12 months ### "Easy to set up, generous free tier, very helpful. " August 5, 2022 5.0 My experience was quite positive. They are now a standard piece of my toolkit when building things. Pros Generous free tier. The product is simple and does what it needs to do. Their backoffice admin dashboard is useful and helpful Cons Nothing in particular, it does what it says on the tin. Review Source JN Jephte N. Admin Telecommunications Used the software for: 6-12 months ### "Best anti spam service" June 8, 2023 5.0 Pros The most et big feature is the spam blocking Cons It is very helpful and integration of whmcs was very fast and easy Review Source VR Verified Reviewer Senior PHP Developer Computer Software Used the software for: 6-12 months ### "Great API for email validation" March 8, 2020 5.0 Pros There are a lot of email validation options offered by MailBoxValidator, but my main interest was in the API and especially its integration in PHP and its frameworks/CMS and I just love the simplicity it offers of doing that. Cons Nothing particular comes to mind, but of course every kind of service can use improvements, so wht I would like is that in the API if the boolean responses would be boolean rather than literal strings "true" and "false" Review Source Similar Products Featured ## Related categories [Email Management](https://www.capterra.com/email-management-software/)