# 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

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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/)

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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

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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

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