Email Blacklist: How to Check and What to Do If You’re Blacklisted

Are you having trouble sending emails to your contacts because your address has ended up on an email blacklist? Fortunately for you, we know exactly what you need to do to remove it from the list so you can use it again without any restrictions.

Why Is My Email Address Blacklisted?

An email blacklist is a database with email addresses, IP addresses, and domain names that are known to send spam.

One of the most well-known email blacklists is the Composite Blocking List (CBL) by Spamhaus. As explained on its website, “the CBL lists IPs exhibiting characteristics which are specific to open proxies of various sorts and dedicated Spam BOTs which have been abused to send spam.” Other prominent email blacklists include SpamCop, MultiRBL, SURBL, and Invaluement, just to name a few.

Email blacklists are used by everyone from email service providers like Google and Microsoft to Internet Service Providers (ISPs) like Comcast and Verizon to prevent spam emails from entering their servers and annoying their customers.

There are many ways how an email address, IP address, or a domain name can end up on an email blacklist:

What to Do If Email Was Blacklisted?

If you suspect that your email got blacklisted, you should do a quick email blacklist check using an email blacklist checker, which is a software tool that allows you to easily check email blacklists with just a few clicks. It’s much faster to use an email blacklist checker than it is to manually check individual blacklist email sites, and blacklist checkers typically come with a plethora of other useful features to help you learn more about your email address and its status in the eyes of email and internet service providers.

Here are three public email blacklist checkers you should know about:

How to Check Email Blacklist Databases with MXToolBox

This is how you can check your email address with MXToolBox:

  1. Go to
  2. Enter your server IP or domain name and click the “Blacklist Check” button to perform an email blacklist check.
  3. After a few seconds, you should see a long list of popular email blacklists with status messages right next to them. If all blacklists display the “OK” message, your email address isn’t blacklisted.

Email Blacklist Removal

Ending up on an email blacklist isn’t the end of the world. If you’ve found out that your email address has been blacklisted, you need to change what’s wrong and contact the spam list, telling them that the problem is now fixed.

Most spam list owners and administrators respond to removal requests fairly quickly, but we highly recommend you do everything you can to ensure that the problem has been fixed before you ask for your email address to be removed because they probably wouldn’t be so friendly the second time around.

In addition to cleaning up your email list, you should also scan your computer and other devices for malware and use an inbox cleaner like Clean Email to organize your inbox and remove all emails you don’t need. Clean Email can automatically unsubscribe you from all unwanted subscriptions and remove entire groups of emails with a few clicks.


“Is my email blacklisted?” isn’t a difficult question to answer because there are many free email blacklist checkers that you can use to instantly see if your email address has ended up on an email blacklist. Of course, discovering that your email address has, indeed, been blacklisted is just the first step toward email blacklist removal. To successfully remove a blacklisted email address from all email blacklists, you need to change what’s wrong and contact the owners of the corresponding email blacklists. You should also verify that both your computer and your inbox are clean, which you can do using any popular malware removal tool and Clean Email, an easy-to-use inbox organizer.

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