Email Registration Blacklist Plugin for WordPress by CreativeMinds

Email Registration Blacklist | Domain Blacklist and Whitelist Plugin

Email Registration Blacklist Plugin for WordPress by CreativeMinds main image

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 users from approved emails and domains. Apply automatic domains lists that are always up-to-date or block them manually.

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.

Login Screen Showing Error Message Coming from the Plugin
Login 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

@rik0399 at "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!."

Email Domain Blacklist Online Services

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:

  1. SpamAssassin – Using a list of free email domains downloaded from SpamAssassin
  2. DNSBL – Using the DNSBL online service
  3. 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.
Blacklist-Domains - Email Domain Blacklist WordPress plugin

Avoiding Spam With The Blacklist Plugin

  • 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
Comments Allowed Domains
Comments Allowed Domains

Restrict Leaving Comments

Restrict the ability to leave comments for guest users to the list of whitelisted domains.

Define the list of allowed domains to filter comments from non-registered users on your website.

Control-Registration- - Email Domain Blacklist WordPress plugin

Email Blacklist Plugin Use Cases

  • Mailing List – Capture hundreds of valid emails for your marketing lists
  • Lead Capture – Filter suspicious emails and assure only real users register to your service

Email Blacklist Plugin Related Use Case

Email Blacklist Additional Resources

Blacklist Plugin-Related Blog Resources

Email and Domain Blacklist Related Plugins

CM Registration Pro
Registration and Invitation Codes
This plugin adds a registration and login popup to your WordPress site. This plugin supports invitation codes, email verification, reCaptcha and more. Wordpress login and email registration uses Ajax for on page support.
[ Video]  [ Userguide]
CM WordPress HTTPS Pro
WordPress HTTPS SSL Plugin
Automatically redirect from HTTP to HTTPS. Generate a free SSL certificate from the trusted Let's Encrypt service and force your entire website to support SSL.
[ Video]  [ Userguide]
Curated List Manager Pro
Curated List Manager
The curated list manager plugin lets you organize links and content around categories and usably display the information. The plugin is a great tool for content marketing, knowledge sharing, or even preparing an assignment list.
[ Video]  [ Userguide]

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
Domain Whitelist – Restrict registration only to domains which appear on your whitelist
Email Whitelist – Restrict the registration to a defined list of emails which you upload. A user using another email will not be able to register View screenshot: Email Registration Blacklist User Whitelist
Domain Blacklist – Block certain domains entirely and prevent them from registering. View screenshot: Email Registration Blacklist User Blacklist
Email Blacklist – Specify email addresses that are not allowed to register
Special Gmail Support – Recognizes email addresses that use the “+” and “.” symbols in both and domains
Comprehensive Settings – Control what tools are used to filter domains registration. View screenshot: Email Registration Blacklist Settings
Comments Allowed Domains – Filter guests’ comments using the list of allowed by you domains


DNSBL Service – DNSBL (Domain Name System Blacklists) 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 – Import any number of emails to be blacklisted or whitelisted instantly by using a CSV file
Domain Testing – Check if a domain 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 – See a list with all failed registration attempts and the reason why the domain / email was banned – View screenshot: Email Registration Blacklist Plugin Failed Registration Log
Custom Denied Message – 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 blacklist multiple domains?

Yes. 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.

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.

Do the blacklisted users receive notification of failed registration?

Yes. The message the users receive is editable and appears in the plugin setting. The 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 invalid?

Yes. The list of invalid domains from SpamAssassin includes 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.

Can I filter comments from guest users?

Yes, you can define the whitelist of domains that are allowed to leave comments on your website as guest users. Click here to learn more.

Will this plugin work with the CM Registration plugin?

Yes. It is designed to work together with the CM User Registration and Invitation Codes WordPress Plugin.

Email Blacklist Plugin Image Gallery

Back-end Gallery

Customer Reviews for Email Blacklist

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.

Email Blacklist Plugin Release Notes

Version 1.6.1 from the 24th Jan 2022

  • Added wildcard support with email blacklist and whitelist

Version 1.6.0 from the 9th Jan 2022

  • Resolved deprecated issues

Version 1.5.9 from the 22nd Sep 2021

  • Added support with woocommerce edit profile, edit address and checkout form

Version 1.5.8 from the 28th Aug 2021

  • Compatible with PHP 7.4

Version 1.5.7 from the 24th May 2021

  • Updated license package to version 1.9.1

Version 1.5.6 17th May 2021

  • New redeveloped import from .csv files for Import Settings page
  • Added big list of file / file content checks and errors messaging to provide quick and safety import

Version 1.5.5 11th May 2021

  • Added new possibility to control domains can left the comments
  • Added new options tab with Allowed domains control Enable/Disable and Allowed domains control list

Version 1.5.4 31st March 2021

  • Added clear all button under User Domain Blacklist, Domain Whitelist, Email Blacklist and Email Whitelist section

Version 1.5.3 27th Aug 2020

  • Added: multysite support

Version 1.5.2 16th June 2020

  • Updated license package 1.9.0

Version 1.5.1 27th Apr 2020

  • Added support to blacklist/whitelist with domain extensions only
  • Updated package 1.8.10

Version 1.5.0 25th Feb 2020

  • Added new option for remove HTML tags from error messages

Version 1.4.9 9th Feb 2020

  • Added new filter called custom_register_post

Version 1.4.8 18th Nov 2019

  • Added filter email blacklist when user update his email address after registration

Version 1.4.7 9th Sep 2019

  • Added the support with User Registration – Custom Registration Form, Login And User Profile For WordPress

Version 1.4.6 2nd Aug 2019

  • Added the support with Profile Builder Hobbyist

Version 1.4.5 21st July 2019

  • Added the support with Ultimate Member

Version 1.4.4 28th May 2019

  • Added the compatibility with WP User Manager

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 “” instead of “”
  • 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

Do you need additional functionality?

We can implement additional features, change the interface and integrate external resources. Get in touch with us!

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