Miquel Colomer

<p>This plugin uses the uProc for WordPress API <a href="https://uproc.io" rel="nofollow ugc">https://uproc.io</a> to check if an email address really exists or not.</p>
<p>The plugin integrates with the is_email() function of WordPress. It works seamlessly with:</p>
<ul>
<li>Contact Form 7</li>
<li>Jetpack/Grunion</li>
<li>WordPress registration forms</li>
<li>and with any other form which uses the is_email() function (no changes required).</li>
</ul>
<p>The plugin can also be integrated into 3rd party forms that do not use the is_email() function.</p>
<h4>How does it work?</h4>
<p>The uProc API real-time validation process includes all of the following tests:</p>
<ul>
<li>Syntax verification (IETF/RFC standard conformance)</li>
<li>DNS validation, including MX record lookup</li>
<li>Disposable email address (DEA) detection</li>
<li>Misspelled domain detection to prevent Typosquatting</li>
<li>Freemail address detection</li>
<li>SMTP connection and availability checking</li>
<li>Temporary unavailability detection</li>
<li>Mailbox existence checking</li>
<li>Catch-All testing</li>
<li>Greylisting detection</li>
<li>Block free domain emails (like Gmail, Hotmail, Yahoo, …)</li>
<li>Avoid email validations on Woocommerce orders</li>
</ul>
<p>The plugin requires an API Key (free, no credit card required):<br />
<a href="https://app.uproc.io/#/signup" rel="nofollow ugc">https://app.uproc.io/#/signup</a></p>
<p>We do not send any email to the recipient address during the entire validation process. All processing is done on our servers, your IP addresses and domains are not affected in any way by the Email-Validator service – absolutely no blacklisting risk for your IPs and domains.</p>
<p>Data Protection and Privacy Policy: see the Frequently Asked Questions section.</p>
<h3>What is uProc</h3>
<p>uProc is a SaaS platform where you can check or enrich any available field in your database. Please, check our catalog at<br />
<a href="https://app.uproc.io/#/tools" rel="nofollow ugc">https://app.uproc.io/#/tools</a><br />
to find the right tool for you.</p>
<p>Next fields can be processed with our catalog:<br />
* Audio: speeches<br />
* Communication: Email, Mobile, Phone<br />
* Company: Cif, Name, Employee<br />
* Finance: Credit card, Account, Currency<br />
* Geographical: Country, City, Coordinates<br />
* Image: Screenshot, EXIF<br />
* Internet: Domain, IP, URI<br />
* Personal: Name, Surname, Gender<br />
* Product: EAN, UPC, ASIN, GTIN, ISBN<br />
* Security: Password, MD5, Luhn<br />
* Text: Uppercase, Lowercase, Lists</p>


uProc for WordPress

I hope this plugin will be useful for your site.

You can validate emails on registration or comments.
Some cash is added to your account by default to test it.

The weak point: No other validation is supported yet when lots are available in the service catalog.

This will be solved soon. Mobile and landline phones validations are needed in my WordPress site.

Nice plugin, useful for my site

With the uProc for Wordpress plugin you can easily verify if an email address really exists and is valid. Additionally, you can check all existing too …

yonifre

WpMaspik

<p>Maspik is an advanced WordPress anti-spam plugin that blocks bots, fake leads, and unwanted submissions across your entire site — without hurting real users.</p>
<p>Trusted by thousands of websites worldwide. Works automatically on activation.</p>
<p>👉 Works with all major form plugins. No CAPTCHA. No coding. Immediate results.</p>
<h3>Why block spam with Maspik?</h3>
<ul>
<li>🚀 <strong>Instant protection</strong> – Works as soon as you activate the plugin.</li>
<li>🎯 <strong>High success rate</strong> – Better protection than traditional CAPTCHA.</li>
<li>🔍 <strong>Smart detection</strong> – Identifies spam patterns automatically with advanced rules and optional AI spam detection.</li>
<li>🌐 <strong>Wide compatibility</strong> – Supports all major form plugins and WordPress core forms (comments, registration).</li>
<li>🛠️ <strong>Fully customizable</strong> – Blacklists, IP blocking, character limits, link limits, countries, languages, and more.</li>
<li>👥 <strong>Spam Block Guarantee</strong> – We are committed to helping you block spam. See the <a href="#-spam-block-guarantee---for-all-users" rel="nofollow ugc">Spam Block Guarantee</a> section.</li>
</ul>
<h3>Key Features</h3>
<p>✅ Works instantly with popular form plugins and core WordPress forms<br />
✅ No CAPTCHA required – silent protection for your visitors<br />
✅ Forbidden keywords list system (Blacklist/Blocklist) – block any word, phrase, or pattern you want per field type<br />
✅ IP blacklist & API integrations<br />
✅ Phone number validation<br />
✅ Multiple honeypot methods and advanced key checks<br />
✅ Multi-language support<br />
✅ Maspik Matrix – Cloud-based Multi-layer spam protection engine</p>
<h3>Detailed Features – Advanced Spam Protection & Filtering</h3>
<h3>Maspik Matrix – Advanced Multi-Layer Spam Protection</h3>
<p>Maspik Matrix is a powerful layered spam filter that combines multiple detection methods into one unified protection system.</p>
<p>This engine performs several checks in parallel to increase accuracy and reduce false positives, including:</p>
<ul>
<li>IP reputation and risk scoring  </li>
<li>Pattern matching and keyword analysis  </li>
<li>Heuristic behavior checks  </li>
<li>Structural and content-based evaluation  </li>
<li>AI Spam Check scoring mechanisms  </li>
<li>Learn from spam submissions and improve over time</li>
</ul>
<p>Maspik Matrix provides stronger, faster, and more reliable spam detection by evaluating each submission through multiple layers of protection simultaneously.</p>
<p>Maspik includes <strong>100 free Matrix checks</strong> so you can start protecting forms immediately.<br />
<strong>Pro users get unlimited Matrix checks</strong>.</p>
<p>Note – Local checks are not counted towards the monthly limit, only API calls are counted.</p>
<h3>Blacklisting by Field Type</h3>
<ul>
<li><strong>Text fields/Text area fields</strong> (e.g. name, subject, message)</li>
<li><strong>Email fields</strong> (supports regex/wildcard patterns)</li>
<li><strong>URL fields</strong></li>
<li><strong>Phone number fields</strong> (regex/wildcard support)</li>
</ul>
<h3>Blocking Capabilities</h3>
<ul>
<li>Specific IP addresses</li>
<li>Spam submissions in:
<ul>
<li>WordPress comments</li>
<li>WordPress registration forms</li>
<li>Contact forms from supported plugins (see list below)</li>
</ul>
</li>
<li>Option to block submissions containing emojis in textarea fields</li>
<li>Blocking bot-generated submissions</li>
<li>Advanced key checks to detect automated submissions</li>
</ul>
<h3>Advanced Blocking</h3>
<ul>
<li>Honeypot fields (multiple strategies)</li>
<li>IP verification (100 checks/month in free version)</li>
<li>Advanced key check engine</li>
</ul>
<h3>Character Control</h3>
<ul>
<li>Maximum characters in text fields</li>
<li>Maximum characters in textarea fields</li>
</ul>
<h3>Link Limitation</h3>
<ul>
<li>Limit the number of links allowed in textarea fields (for example, 0–1 links)</li>
</ul>
<h3>API Integrations</h3>
<ul>
<li><strong>Proxycheck.io</strong> – Check IP addresses against proxy/VPN/TOR</li>
<li><strong>AbuseIPDB.com</strong> – Check IP addresses against abuse/spam/malicious/proxy/VPN/TOR</li>
<li><strong>Numverify.com</strong> – Validate phone numbers to block spam phone numbers</li>
</ul>
<h3>Spam Log</h3>
<ul>
<li>Review blocked submissions</li>
<li>Understand why and how spam was blocked</li>
<li>Use logs to fine-tune your spam protection</li>
</ul>
<h3>Detailed Statistics</h3>
<ul>
<li>Track how many spam submissions were blocked</li>
<li>Analyze patterns</li>
<li>Monitor protection over time</li>
<li>Advanced spam statistics dashboard in the admin</li>
</ul>
<h3>Supported Forms</h3>
<p>Maspik integrates seamlessly with a wide range of popular form plugins and WordPress core forms:</p>
<ul>
<li>Elementor Forms</li>
<li>Elementor Atomic Forms</li>
<li>Contact Form 7</li>
<li>Hello Plus</li>
<li>Ninja Forms</li>
<li>Everest Forms</li>
<li>Formidable Forms</li>
<li>JetFormBuilder</li>
<li>Forminator Forms</li>
<li>Fluent Forms</li>
<li>Bricks Builder Forms</li>
<li>Breakdance Builder Forms</li>
<li>BuddyPress</li>
<li>Bitforms</li>
<li>Metform</li>
<li>WordPress comments</li>
<li>WordPress registration form</li>
<li>Custom PHP forms</li>
<li>WPForms*  </li>
<li>Gravity Forms*  </li>
<li>WooCommerce registration form*  </li>
<li>WooCommerce review*</li>
</ul>
<p>(*) Pro license required.</p>
<h3>Pro Version Features 🌟</h3>
<p>Upgrade to Maspik Pro to unlock powerful additional features:</p>
<ul>
<li>⭐ Maspik Matrix – Unlimited checks</li>
<li>⭐ Custom spam dashboard for multiple sites – manage all spam settings from one place</li>
<li>⭐ Country-based filtering – block spam by country or allow only specific countries</li>
<li>⭐ Language-based filtering – block spam by language or allow only specific languages</li>
<li>⭐ Settings import/export</li>
<li>⭐ Premium support</li>
</ul>
<p>Learn more and get Maspik Pro at:<br />
https://wpmaspik.com/?readme-file</p>
<h3>Important Note</h3>
<p>Be cautious when selecting words to blacklist, as every website has different needs.<br />
For example, if you are a digital marketing agency and blacklist the word “SEO”, you may lose some valid leads.</p>
<p>The plugin is provided “as is” and the user assumes full responsibility for configuring and using it appropriately for their specific needs.</p>
<p>Maspik is GDPR compliant.</p>
<h3>Support & Community</h3>
<ul>
<li>🚀 <a href="https://wpmaspik.com/documentation/getting-started/?readme-file" rel="nofollow ugc">Get Started guide</a></li>
<li>📚 <a href="https://wpmaspik.com/documentation/?readme-file" rel="nofollow ugc">Documentation</a></li>
<li>💬 <a href="https://www.facebook.com/groups/maspik" rel="nofollow ugc">Community Forum</a></li>
<li>🐛 <a href="https://wpmaspik.com/#support?readme-file" rel="nofollow ugc">Report Issues</a></li>
<li>💡 <a href="https://wpmaspik.com/#support?readme-file" rel="nofollow ugc">Feature Requests</a></li>
<li>💰 <a href="https://wpmaspik.com/get-maspik-pro-for-free-share-your-expertise/?readme-file" rel="nofollow ugc">Receive Maspik Pro for free</a></li>
<li>💖 <a href="https://wordpress.org/support/plugin/contact-forms-anti-spam/reviews/#new-post" rel="ugc">Support us with a 5-star review</a></li>
<li>✨ <a href="https://wpmaspik.com/?readme-file" rel="nofollow ugc">WP Maspik Website</a></li>
</ul>
<h3>🛡️ Spam Block Guarantee – for all users</h3>
<p>We stand behind our protection. If spam is still getting through your forms, our team is here to help and guide you to block it.</p>
<h3>Getting Help is Easy</h3>
<ol>
<li>Join our <a href="https://www.facebook.com/groups/maspik" rel="nofollow ugc">Community Forum</a></li>
<li>Create a new post with:
<ul>
<li>Your website URL and form page URL (optional)</li>
<li>Description of the spam you are receiving</li>
<li>Screenshot or text of sample spam submissions</li>
<li>Your Maspik version</li>
<li>Screenshot or export of your current Maspik settings</li>
</ul>
</li>
</ol>
<p>Our team will guide you step-by-step to block the spam effectively.</p>


Maspik – Ultimate Spam Protection


Easily the best solution for fighting spam. Their support is top notch as well.


Excellent solution

No more fake leads or unwanted submissions — Maspik blocks spam instantly across all forms without using CAPTCHA.

uProc for WordPress vs Maspik – Ultimate Spam Protection