Jake Jackson

<p>If you like total control of the comments on your WordPress blog without having any extra overheads (like you get with 3rd party spam prevention software) then this is a great tool for you.</p>
<h4>Features</h4>
<ul>
<li>Automatically placed IP address on comments blacklist if administrator marks comment as spam</li>
<li>Will remove IP address from comments blacklist if spam item is marked as ‘not spam’</li>
<li>When activated, will review all spam comments and place the spammers IP address on the comments blacklist.</li>
</ul>
<h4>Support</h4>
<p><a href="http://www.blueliquiddesigns.com.au/index.php/wp-automatic-spam-blacklister/" rel="nofollow ugc">All support is provided through the plugin developer’s website</a>.</p>


WP Spam Blacklister

The WP Spam Blacklister is a simple spam-prevention plugin that adds the IP address of a marked spam post on Wordpress' comments blacklist.

Warren Harrison

<p>The User Domain Whitelist/Blacklist plugin limits user registration to only registrants with an email address from the domain white list below OR prevents registrants with an email address from the domain black list below from registering. For example, <em>hortense@example.com</em> would only be allowed to register if <em>example.com</em> appeared in the domain white list. Conversely,  <em>hortense@example.com</em> would <strong>not</strong> be allowed to register if <em>example.com</em> appeared in the domain black list. Anyone attempting to register using an email address outside the white list or inside te black list will receive the error message below.Anyone attempting to register using an email address outside the white list will receive an error message. Both the domain whitelist and the error message can be modified via the plugin options page (available under the Settings menu).</p>


User Domain Whitelist

The User Domain Whitelist/Blacklist plugin limits user registration to only registrants with an email address from the domain white list provided by t …

WP Spam Blacklister vs User Domain Whitelist