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!

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.

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.

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

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.

None so far

The idea is great as I mistype emails all the time. Thought was that I would validate these after entered into my software.

It is not reliable to use.

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.

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.

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.

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.

The customer support is something disappointing. Rest the capabilities of the software is undoubtedly best.