Toxic emails are bad for business.

Reduce your risk. Not your revenue.

The rule for decision making in life and business goes like this: The person with the fewest blind spots wins. It's like being at a poker table where you can see everyone else's cards.

But how do you get there? How do you reduce those blind spots? How do you learn faster and make better decisions than everyone else?

If you're an Email Service Provider or large volume sender, one way is by using BlackBox.

We offer exclusive access to hundreds of millions of email addresses that have been proven to be detrimental to list health and mailing reputation.

The world's most respected email senders use BlackBox to gain the visibility they need to avoid risk and retain more revenue. Start your free trial today.


Reliable decisioning for better results.

Unique Data

It’s the missing dataset needed to enable improved, automated quantitative and qualitative risk assessments of email files.

Granular Details

Classifications include widely-traded emails, hardbounces, litigators, harvested, hacked and more.


See and score record-level details, as well as list-level match rates, prior to deployment.

Mitigate Risk

Protect against the possibility of private and public blacklistings and keep deliverability running smoothly.


Enhance pre-existing list validation methods. If no established methods exist, we offer the fastest time-to-market solution.

Ease of implementation

100% compatible with your existing systems. On-premises, App or API access to is available.


BlackBox is available as a cancel-anytime subscription.


$0 / month
Limits: 5,000/month
Access: Web
On Premise
Features: Match Rate
Threat Codes
Users: 1


Limits: 50,000/month
Access: Web
On Premise
Features: Match Rate
Threat Codes
Users: 1


Limits: 250,000/month
Access: Web
On Premise
Features: Match Rate
Threat Codes
Users: 2


Limits: 1 million/month
Access: Web
On Premise
Features: Match Rate
Threat Codes
Users: 5


(Add $10,000 one-time fee for on-premises data)
Limits: 2 million/month
Access: Web
On Premise
Features: Match Rate
Threat Codes
Users: 10

News and Events

The latest from our blog.

Email Evolution in Soulful Savannah

March 20, 2019

We're long time supporters of the EEC and this year we’ll be at their Email Evolution Conference in Savannah, Georgia on April 24-26.

Email Evolution is like coming home for the holidays; it's busy,

Email Marketing Predictions 2019 - A Meta View

February 13, 2019

For the 4th year we present a meta data analysis of the predictions made for the coming year by industry experts. This year we gathered 195 predictions and categorized them as presented in the chart

Monitoring Sender Reputation: Why an ESP Must Act Like a Wary Money Lender

December 11, 2018

Sender reputation and ESP deliverability

Just as a bank or another kind of lender must thoroughly vet a customer before trusting them with a loan, an ESP needs to know something about a customer

Email Blacklisted? What you need to know

September 11, 2018

Email blacklisted. What now?

Email blacklists are not necessarily a bad thing. I know that's hard to believe if your domain or IP is listed and your email campaigns can't make it out the door. Did

Hacked Emails Affect on Deliverability

July 18, 2018

Data breaches happen everyday

While we have all been diligently working to protect the privacy of European customers, data breaches have continued to happen. According to, 2018 is

BlackBox Adds Freemium Plan to Help Improve Email List Scoring for All

April 30, 2018

Freemium. Yes, freemium. It seems like an unlikely path for a market-proven product after years of helping world-class email senders build abuse prevention systems, but that’s exactly what we’re

Is your customer email list good or bad?

March 16, 2018

How To Score a Risky Email List With BlackBox

Have you ever had a customer wanting to use your email marketing platform and you weren’t quite sure of their intent or their savviness of the nuances of

A Curated Look at 2018 Email Marketing Predictions

January 30, 2018

This is the third year we have collected and curated email marketing predictions. It looks as if it's the year of the platform, the emails sent, and the details/design of their content.

The top 4


November 7, 2017

Fall is in full swing and the clocks are rolled back! That means we’re now raking leaves, pruning bushes and cleaning out closets of old clothes as we switch to warmer, more relevant outfits. You and

Spam Traps

August 15, 2017

Spam Traps: Are You Keeping Your Customers Clear of Them? Or Putting Your Deliverability at Risk?

If you work in the email industry, I’m assuming you already know what a spam trap is, and that it’s a

Why Not Use Purchased Lists?

August 11, 2017

9 Reasons to Avoid Purchased Email Lists Like the Plague

If you want a surefire way to undo all of the hard work you’ve put into building a solid sender reputation, if you want to smear that


Please don’t hesitate to get in touch.
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    Augusta, GA 30901