CM Email Registration Blacklist


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Block unwanted users from registering to your WordPress site with custom defined blacklist and whitelist rules. Updated and tested 2021 Version

The Email Blacklist plugin will check a user trying to register to your WordPress site against defined blacklist and whitelist rules. The email blacklist plugin uses online services such as SpamAssassin’s free domains list.

The email blacklist plugin stops users on blacklisted domains from registering to your WordPress site, stopping unwanted spammers, viruses and malware with one click blacklisting. The blacklist plugin also keeps a whitelist of users which can be manually updated.

The email blacklist plugin easily and effectively blocks users from registering using the blacklist function, so only approved domains or email lists can register.

The pro version includes the ability to manually add domains to the blacklist and whitelist, only allow whitelisted domains to register, and allow blacklisted users lists to be imported via csv file.

Admins can change the messages users see when they have been banned, view the failed registration log, test domains to check for blacklisted users and more.

Basic Email Blacklist Plugin Features

  • Free Domain List from SpamAssassin
  • Custom whitelist of accepted domains
  • Admin can edit domain list
  • Admin can create black email list

Versión Pro

In the Pro version of the Email Blacklist Plugin, there are several methods to detect whether a domain is
blacklisted in real time, which means that hackers and spammers will never be able to register to harm your
website in any way. This is done using the following detectors:

  • Support DNSBL online service
  • Domians Blacklists and whitelists defined by the site administrator
  • Log of denied registrations
  • Manually added domains
  • Additional errors messages to show to users trying to register
  • Whitelisted domains which only can register
  • Support email blacklist and whitelist
  • Support importing list of emails from CSV

How to Use the Email Blacklist Plugin

  • Beta – Control users in your beta site release
  • Members Only – Restrict site registration from specific domains
  • Spam – Prevent spam users from registering


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  • Login screen showing registration error message
  • Plugin labels settings
  • Free domains list and update option
  • User whitelist
  • Plugin General option
  • Domain tester


  1. Upload the plugin folder to the /wp-content/plugins/ directory
  2. Activa el plugin en menú ‘Plugins’ de WordPress
  3. Manage your CM Email Blacklist from Left Side Admin Menu

Note: You must have a call to wp_head() in your template in order for the JS plugin files to work properly. If your theme does not support this you will need to link to these files manually in your theme (not recommended).
PHP Version: Plugin uses a structure which was introduced only with PHP 5.3.0. So if the version of PHP is lower Plugin does not work


2 de agosto de 2019
I sent an email asking to modify the plugin to be compatible with my registration form and the team, really very responsive, did it in a few days. Then I uploaded a file with more than 22000 disposable email domains to block them in my users registration page. The plugins works perfectly without slowing down the registration process.
4 de agosto de 2017
The most people are using free emails like aol gmail freenet gmx and so, why to forbid them. And spammer users are using or so. There is no blacklist for them. I really don't understand the sinn of this plugin
20 de julio de 2017
This plugin works as expected; killed all spammers and false/disposable emails addresses which is what I needed for years! No more spammers – wonderful!
7 de febrero de 2017
We are sorry, but you need to have at least PHP 5.3 to run this plugin (currently installed version: 5.2.17) - please upgrade or contact your system administrator.
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