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Email Domain Blacklist Plugin for WordPress by CreativeMinds

The WordPress email registration blacklist plugin allows you to block users who try to register on your WordPress site using an email from a domain or email defined in your blacklists or approve only users from a whitelist. Avoid spam, virus, malware, disposable emails and unwanted users!

Email and Domain Blacklist Plugin Description

The WordPress Email Registration and Domain Blacklist plugin prevents users on banned domains and banned emails from registering on your WordPress site.

This great Anti-spam WordPress tool reduces the noise and restricts posting to only users from approved emails and domains. Protect yourself from spam, malware, virus, disposable emails and unwanted users.

Restrict Site Registrations

Our domain blacklist plugin makes sure that only authorized users from approved domains or certified emails can register and use your WordPress site. It's easy to avoid unwanted spammers, viruses and malware with one click blacklisting

The email and domain blacklist plugin can also work in whitelist mode, which means that only approved domains or lists of emails can register to the site.

FLogin Screen Showing Error Message Coming from the Plugin
FLogin Screen Showing Error Message Coming from the Plugin
Error Log Report Showing All Blocked Registrations
Error Log Report Showing All Blocked Registrations

Logging Failed Registration Attempts

This blacklist plugin will automatically check a user trying to register on your WordPress site against your backlist function, or defined records of blacklisted or whitelisted domains
@rik0399 at WordPress.org

@rik0399 at WordPress.org: "Killed All Spammers - This plugin works as expected; killed all spammers and false/disposable email addresses which is what I needed for years! No more spammers – wonderful!."

Using Email Domain Blacklist Online Services for Suspicious Domains

Multiple Domain Filtering Options

The email domain blacklist plugin uses several online methods as well as local plugin lists to detect whether a domain is blacklisted in real time. This means that hackers and spammers will find it hard to register and harm your website!
Setting Screen Showing Options to Check Domains and Emails
Setting Screen Showing Options to Check Domains and Emails

This is achieved using the following banned domains detector online services:

  • SpamAssassin – Using a list of free email domains downloaded from SpamAssassin
  • DNSBL – Using DNSBL online service
  • WhiteLists and Blacklists – All this service can be used together with your own blacklists and whitelists domains lists or with your own banned emails list.

Avoiding Spam With The Blacklist Plugin for WordPress

  • Protect Your WordPress Site – Prevent spammers from registering to your site
  • Block Spammers – A Great Anti-Spam WordPress plugin that blocks users from suspicious domains
  • Blacklist and Whitelist Domains and Emails – Approve registration of specific users from predefined approved emails or domains
  • Registration Log Support – Log all failed registration attempts

Email Blacklist Additional Resources

Email and Domain Blacklist Related Plugins

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This plugin automatically sets up a redirection from http to the https version of an URL. The plugin can force your entire domain to be auto redirected to the HTTPS URL or selectively choose a few pages to be redirected.
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Email Tools and Mail SMTP
Configure your email gateway so you can easily send emails from your WordPress website using your preferred SMTP server. Support logging sent emails, multiple gateway configuration and more
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A selection of handy Admin tools to improve your WordPress admin dashboard, improve site performance, customize look and feel, review error logs, track cron jobs and more.
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Email Blacklist Basic Features

  • Free Domain List from SpamAssassin which can be used to filter blacklisted domains
  • Create a whitelist of accepted domains
  • Customize Labels

Email Blacklist Premium Features

Please check the user guide to learn more about this plugin.

Whitelisting and Blacklisting

  • Spamassassin Domains List – The plugin includes the free and constantly updated Spamassassin list of suspicious domains to add to your blacklist domains list – View screenshot: Email Registration Blacklist Free Domains List
  • Allow only Whitelisted domains to register – Restrict registration only to domains which appear on your whitelist
  • Allow only Whitelisted emails to register – Restrict the registration to a defined list of emails which you upload. A user using another email will not be able to register.
  • Prevent blacklisted emails or domains from registering – Any email from a domain which appears in one of the blacklist used by the plugin will not be able to register
  • Add Domains to Whitelist – Admin can manually add the domain to the Whitelist. This will help override domains which appear in one of the other blacklist such as Spamassasian and allow users to register. View screenshot: Email Registration Blacklist User Whitelist
  • Add Domains to Blacklist – Admin can manually add domains to the blacklist. This will prevent users coming from these domains to register – View screenshot: Email Registration Blacklist User Blacklist
  • User Emails Blacklist and Whitelist – Admin can add specific emails to the email blacklist or email whitelist. This will prevent users using these emails (ban them) from registering on the site. – View screenshot: Emails Whitelist / Blacklist Settings – Image 1, Image 2
  • Extra Plugin Settings – Plugins settings control what tools are used to filter domains registration. – View screenshot: Email Registration Blacklist Settings
  • Special Gmail Support – Recognizes email addresses that use the “+” and “.” symbols in both @gmail.com and @googlemail.com domains


  • Online domain filtering using DNSBL service – DNSBL Information provides a single place where you can check that blacklist status on more than 100 DNS based blacklists. The plugin connects to the server once a user tries to register to check if their domain is defined as a spam domain.
  • Import lists from CSV file – Allow to import from a csv file of blacklisted or whitelisted emails
  • Testing Domains – You can test a domain to check if it is blacklisted based on any of the rules you have defined. The testing imitates a user trying to register on your site – View screenshot: Email Registration Blacklist Plugin Domain Tester
  • Failed Registration Log – The log includes the list of all failed registration attempts and the reason why the domain / email was banned – View screenshot: Email Registration Blacklist Plugin Failed Registration Log
  • Customizing Messages – Admin can customize the messages shown to users once their domain / email has been banned – View screenshot: Email Registration Blacklist Plugin Labels

Email Blacklist Frequently Asked Questions

Please check the user guide to learn more about this plugin.

Can I retract a blacklisted domain?

Yes. Once added to the blacklist domains are editable at any point in time and can be removed from the list at any point in the future.

Can I blacklist multiple domains?

There is no limit to the number of domains that you can add to the blacklist. Add as few or as many domains to the blacklist as you require.

Do the blacklisted users receive notification of failed registration?

Yes. The message the users receive is editable and appears in the plugin setting. Admin can define what the message should say.

Can I use the plugin to find out if a domain is blacklisted?

Yes. Simply go to the “Domain Tester” tab, enter the domain name into the search bar and click the “check” button. The plugin will tell you whether the domain is blacklisted, white-listed, listed in the free domains list or not listed at all.

Can I use the plugin to find out if a domain is blacklisted?

Can I whitelist a domain that has been defined as an invalid domain?

Yes. The list of invalid domains from spamAssasin include some free domains which you may still want to enable registration for, such as Gmail and Yahoo. Simply add them to your whitelist or disable the blocking of free email domains. However, before you do that, make sure that particular domain is indeed safe.

Can I restrict by specific emails and not just domains?

Yes. The plugin also supports using the same methods also blacklisting or whitelisting email addresses.

To learn more about Blacklisting email addresses click here or for whitelisting email addresses click here.

Will this plugin work with the CM Registration plugin?

Yes. It is designed to work together with the CM Registration plugin.

Still have questions? Send us a message and we will reply within 24 hours.



Email Blacklist Image Gallery

Back-end Gallery

Customer Reviews for the Reviews Plugin

Nathaniel Parker

Nathaniel Parker

CM’s Email Blacklist was the most robust solution out of all of them [in the market], so that’s the one I chose.”

“It’s a ‘world of difference’ fewer spammers than we had before installing the plugin.”

Nathaniel Parker uses Email Blacklist on WeatherQuack

Read his story: Weather Forecast: Cool WordPress Managing With no Chance of Spam Signups.

  • 29th Aug
    Great Support
    Fast, friendly and clear to the point and even with reference through a link. Very nice indeed. :-)
  • 19th Jul
    Works As Described …
    This plugin works as expected; killed all spammers and false/disposable emails addresses which is what I needed for years!No more spammers – wonderful!
  • 03rd Dec
    perfect and easy.
  • 11th Feb
    Works well
    Started getting bot registrations so installed to block signups from a specific domain. It works and the list of already blocked domains is very big, all temps emails or spam emails.

Version 1.4.3 16th May 2019

  • Updated licensing package
  • Fixed PHP error

Version 1.4.2 5th Feb 2019

  • Expanded GMail blocking to addresses that use variants with “dot”, “plus” signs and “googlemail.com” instead of “gmail.com”
  • Updated licensing package

Version 1.4.1 5th Dec 2018

  • Updated the Licensing Package
  • Small UI changes

Version 1.4.0 25th Sep 2018

  • Update: Added the option to import the domains

Version 1.3.12 11th April 2018

  • Update: Added the support for the WooCommerce registration

Version 1.3.11 2nd April 2018

  • Bug/change: Changed the algorithm to support the use case when both the e-mail whitelist and domain whitelist are used

Version 1.3.10 19th Dec 2017

  • Updated the Licensing Package

Version 1.3.9 19th July 2017

  • Added the Google reCaptcha option

Version 1.3.8 12th June 2017

  • Updated licensing package

Version 1.3.7 10th May 2016

  • Fixed the support for the registration for the MU sites
  • Updated the Licensing Package

Version 1.3.6 6th Oct 2016

  • Added the support to the problem with loading the Free Email list during activation

Version 1.3.5 23rd Aug 2016

  • Fixed the support for “PrivateContent” plugin

Version 1.3.4 4th Aug 2016

  • Improved the compatibility with CM Registration Pro
  • Updated the Licensing Package

Version 1.3.3 28th June 2016 (pro version)

  • Added the support for “PrivateContent” plugin

Version 1.3.3 21st June 2016 (Free Version Only)

  • Fixed the problem when only whitelist was enabled

Version 1.3.2 22th May 2016

  • Update licensing version and dashboard

Version 1.3.1 6th May 2016

  • Fixed the bug which caused the domains not being whitelisted or on the free domains list as invalid

Version 1.2.8 26th March 2016

  • Added support to user email blacklist check.
  • Added support to user email whitelist check.
  • Added support to import emails to emails blacklist or whitelist.
  • Fix bugs

Version 1.2.7 20th March 2016

  • Updated licensing api support.

Version 1.2.6 25th Feb 2016

  • Added automatic updates from plugin dashboard
  • Replaced plugin admin interface including license activation and user guide

Plugin Release 1.2.5 30th Dec 2015

  • Updated license package

Plugin Release 1.2.4 24th Sep 2015

  • Updated the licensing API
  • Fixed the small bug with one of the files being referenced incorrectly
  • Fixed the General Settings label
  • Fixed the bug in the validation algorithm

Plugin Release 1.2.3 22nd Apr 2015

  • Fix potential XSS issue

Plugin First Release 7th March 2015