doltics

Doltics Radar checks enabled WordPress flows before they complete. Admins can enable protection for outbound email, submitted comments, and account registrations under Settings > Doltics Radar.
Email protection uses WordPress core mail hooks when available. Doltics Radar also includes a Mailgun compatibility adapter for Mailgun versions that replace <code>wp_mail()</code> without calling <code>pre_wp_mail</code>.
<h3>API Contract</h3>
The plugin sends a JSON <code>POST</code> request to the URL <code>https://radar.doltics.com/score</code> :
<pre><code>{
 "text": "The sample text",
 "locale": "en"
}
</code></pre>
The API should return JSON using one of these response shapes:
<pre><code>{
 "score": 0.95,
 "classification": "spam",
 "signals": {
 "token_count": 10,
 "unknown_word_ratio": 0.1,
 "spam_keyword_score": 0.61,
 "uppercase_ratio": 0.34,
 "exclamation_density": 0.3,
 "url_count": 1
 }
}
</code></pre>
Numeric scores are compared against the configured threshold.

Doltics Radar

Protects selected WordPress email, comment, and registration flows with a spam protection API.

gongwan33

<ul>
<li>Allow certain kinds of users to register to your WordPress site by adding whitelist rules. </li>
<li>Super simple to use. The whole plugin just has one simple settings page.</li>
<li>Support regular expression rules.</li>
<li>Completely free.</li>
</ul>

Geek Mail Whitelist

Allow users with certain emails to register to your WordPress site by adding whitelist rules.

Doltics Radar vs Geek Mail Whitelist