WordPress Email Registration Blacklist (CMRB) - Comments Allowed Domains


Comments Allowed Domains

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Note: this guide covers features that were introduced in version 1.5.5 of the WordPress Email Registration Blacklist plugin.

This feature allows you to filter comments from guest users and allow leaving comments only for users with emails that are allowed by your domains list.

To configure this feature navigate to Admin Dashboard → CM E-Mail Registration Blacklist.

Navigation to the plugin settings - WordPress Block Domain Registration
Navigation to the plugin settings

Head to the Comments Allowed Domains tab.

Comments Allowed Domains tab - WordPress Blacklist Plugin
Comments Allowed Domains tab

Comments allowed domains control

  • Use allowed domains for comments filtration - Enable this option to filter who is allowed to leave comments on your site. 
  • Use below whitelist domains for filtration - If enabled, only domains which are added in the Domains that are allowed to leave comments area will be allowed to leave comments. Note: this option was introduced in version 1.6.5.
  • Domain is not allowed to left a comment - You can change the message that the guest will see, if he is not allowed to leave a comment.

Domains that are allowed to leave comments

  • Add new domain or domain extension - Enter here domains that you want to be allowed to leave comments.

You can use full domain names  (e.g. gmail.com) or wildcards (e.g. *mail.com). You can also use domain extension names with wildcards (e.g. *.com).

Note: this feature doesn't affect leaving comments for registered users. If the user is registered on the site, it doesn't matter if he is logged-in or not. If he is logged-in, his comments will be published, and if he is not logged-in and tries to leave a comment using his email (that was used for registration on the site) - the comment will be published.

So, Who Is Allowed to Leave Comments?

There are two ways how you can filter who is allowed to leave comments.

Case #1

  • The option Use allowed domains for comments filtration is enabled 
  • The option Use below whitelist domains for filtration is disabled.

    Filter options - IP Blacklist WordPress Plugin
    Filter options

In this case, filtering will work based on general settings of which lists are activate - domain and email white/black lists, DNSBL and Free Domain lists:

Domain and Email options - WordPress Email Blacklist Plugin
Domain and Email options

Case #2

  • The option Use allowed domains for comments filtration is enabled 
  • The option Use below whitelist domains for filtration is enabled.

    Filter options - Domain Blacklist Plugin
    Filter options

In this case, only the users with email domains which are added to the Domains that are allowed to leave comments area will be allowed to leave comments:

Adding domains to whitelist for comments - WordPress Restrict Email Domains
Adding domains to whitelist for comments

How the blocked comment looks like on the Front-end:

Result on the front-end - WordPress Block Domain Registration
Result on the front-end

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