Jesin A

<p>Most email validators look for an <code>@</code> and a <code>.</code>(dot) some go further and blacklist certain domain names. But Mailgun’s Advanced email validation service goes deeper and looks for the existence of the domain name, presence of a <a href="http://en.wikipedia.org/wiki/MX_record" rel="nofollow ugc">MX record</a> and the custom ESP(Email Service Provider) grammar.<br />
The grammar here is the rules defined by each email provider. For example, Yahoo Mail addresses can only contain letters, numbers, underscores, and one period.<br />
So <code>user.name.abc@yahoo.com</code> perfectly passes the <a href="https://codex.wordpress.org/Function_Reference/is_email" rel="nofollow ugc">is_email()</a> function but can never exist as it contains more than one period. Such addresses can’t escape Mailgun’s Email validation.</p>
<h4>Why use Mailgun’s email validation service?</h4>
<ul>
<li>Performs the usual email syntax check.</li>
<li>Checks the existence of the email domain. So <code>user@some-random-characters.com</code> can’t escape.</li>
<li>Checks if the email domain has a MX record. So <code>anything@example.com</code> is caught.</li>
<li>Checks if the username complies with the grammar of its ESP (Email Service provider). Eg Gmail doesn’t allow usernames less than 6 characters and hyphens so <code>small@gmail.com</code> and <code>hyphen-user@gmail.com</code> can’t get away.</li>
</ul>
<h4>Why use this plugin?</h4>
<ul>
<li>Integrates with the <a href="https://codex.wordpress.org/Function_Reference/is_email" rel="nofollow ugc">is_email()</a> function of WordPress. So it works seamlessly with Contact Form 7, Jetpack/Grunion contact forms, WordPress registration form and any form which uses the <code>is_email()</code> function.</li>
<li>Kicks spam before it is inserted into the database</li>
<li>Ensures that the commenting process is uninterrupted even if Mailgun suffers a <a href="http://status.mailgun.com" rel="nofollow ugc">downtime</a></li>
<li>Works completely transparent, nothing changes in the frontend</li>
</ul>
<p>This plugin requires a Mailgun Public API Key which can be obtained by <a href="https://mailgun.com/signup" rel="nofollow ugc">signing up at Mailgun</a>.</p>
<p>If you’re trying out this plugin on a local WAMP/LAMP/MAMP installation make sure your system is connected to the Internet for this plugin to contact Mailgun.</p>
<h4>Available Languages</h4>
<ul>
<li>English</li>
<li>Serbo-Croatian by <a href="http://www.webhostinghub.com/" rel="nofollow ugc">Borisa Djuraskovic</a></li>
<li>Spanish by <a href="http://www.webhostinghub.com/" rel="nofollow ugc">Andrew Kurtis</a></li>
</ul>
<h4>Further Reading</h4>
<p>Read about Mailgun’s email validation service.</p>
<ul>
<li><a href="http://blog.mailgun.com/post/free-email-validation-api-for-web-forms/" rel="nofollow ugc">http://blog.mailgun.com/post/free-email-validation-api-for-web-forms/</a></li>
<li><a href="http://blog.mailgun.com/post/weekly-product-update-improvements-to-email-validation-api/" rel="nofollow ugc">http://blog.mailgun.com/post/weekly-product-update-improvements-to-email-validation-api/</a></li>
<li><a href="http://mailgun.github.io/validator-demo/" rel="nofollow ugc">Mailgun Address Validator demo</a> and its <a href="https://github.com/mailgun/validator-demo/tree/gh-pages" rel="nofollow ugc">source code</a></li>
<li>The <a href="https://websistent.com/wordpress-plugins/mailgun-email-validator/" rel="nofollow ugc">Mailgun Email Validator Plugin</a> official homepage.</li>
</ul>


Mailgun Email Validator

Implementing this plugin is straight forward and simple.

Works perfectly

Kick spam with a highly advanced email validation in comment forms, user registration and contact forms using Mailgun's Email validation service.

PickPlugins

Nafis Mahmud Ayon

<p>User Verification – Complete WordPress User Authentication & Security Plugin</p>
<h3>User Verification by <a href="http://www.pickplugins.com" rel="nofollow ugc">http://www.pickplugins.com</a></h3>
<ul>
<li><a href="https://www.pickplugins.com/item/user-verification/?ref=wordpress.org" rel="nofollow ugc">Donate</a></li>
<li><a href="https://www.pickplugins.com/support/?ref=wordpress.org" rel="nofollow ugc">Support</a></li>
<li><a href="https://pickplugins.com/documentation/user-verification/?ref=wordpress.org" rel="nofollow ugc">Documentation</a></li>
</ul>
<h3>Secure Your WordPress Site with Advanced User Verification & Authentication</h3>
<p><strong>User Verification</strong> is a comprehensive WordPress security plugin that provides multiple layers of user authentication and spam protection to safeguard your website from unauthorized access and malicious registrations.</p>
<h3>🔐 Key Features</h3>
<h4><strong>Email Verification System</strong></h4>
<ul>
<li><strong>Mandatory Email Verification</strong>: Ensure all new users verify their email addresses before accessing your site</li>
<li><strong>Customizable Verification Pages</strong>: Choose custom redirect pages for successful and failed verifications  </li>
<li><strong>Automatic Login</strong>: Seamlessly log users in after successful email verification</li>
<li><strong>Role-Based Control</strong>: Exclude specific user roles (like Administrators) from verification requirements</li>
<li><strong>Flexible Configuration</strong>: Enable/disable email verification with simple toggle controls</li>
</ul>
<h4><strong>Magic Login (Passwordless Authentication)</strong></h4>
<ul>
<li><strong>🆕 NEW Feature</strong>: Enable secure passwordless login for enhanced user experience</li>
<li><strong>Email-Based Authentication</strong>: Users receive login links directly in their inbox</li>
<li><strong>Customizable Key Length</strong>: Set secure authentication key length (default: 6 characters)</li>
<li><strong>Attempt Limits</strong>: Configure maximum login attempts for security (default: 3 attempts)</li>
<li><strong>Custom Redirect Pages</strong>: Set specific pages for successful logins, failures, and magic login forms</li>
<li><strong>Email Verification Integration</strong>: Require verified emails for magic login access</li>
<li><strong>Easy Implementation</strong>: Simple shortcode <code>[user_verification_magic_login_form]</code> for frontend display</li>
</ul>
<h4><strong>OTP (One-Time Password) Login</strong></h4>
<ul>
<li><strong>SMS/Email OTP</strong>: Secure one-time password authentication system</li>
<li><strong>Configurable OTP Length</strong>: Customize OTP length (default: 6 digits)</li>
<li><strong>Character Flexibility</strong>: Support for numbers, uppercase, lowercase, and special characters</li>
<li><strong>Custom Success/Error Messages</strong>: Personalized user feedback for OTP processes</li>
<li><strong>Post-Login Redirects</strong>: Direct users to specific pages after successful authentication</li>
<li><strong>Easy Integration</strong>: Simple shortcode <code>[user_verification_otp_login_form]</code> implementation</li>
</ul>
<h4><strong>Advanced Spam Protection</strong></h4>
<ul>
<li><strong>Domain Blocking</strong>: Block registrations from specific email domains</li>
<li><strong>Domain Allowlist</strong>: Allow only approved email domains for registration</li>
<li><strong>Username Protection</strong>: Block specific usernames from registration</li>
<li><strong>Flexible Domain Management</strong>: Easy-to-use interface for managing blocked/allowed domains</li>
</ul>
<h4><strong>reCAPTCHA Integration</strong></h4>
<ul>
<li><strong>Google reCAPTCHA v2</strong>: Complete bot protection with checkbox verification</li>
<li><strong>Multiple Implementation Points</strong>: Add reCAPTCHA to login, registration, password reset, and comment forms</li>
<li><strong>WooCommerce Ready</strong>: Full integration with WooCommerce forms</li>
<li><strong>Easy Configuration</strong>: Simple setup with site key and secret key</li>
</ul>
<h4><strong>User Management Tools</strong></h4>
<ul>
<li><strong>Unverified User Cleanup</strong>: Automatically delete unverified user accounts</li>
<li><strong>Existing User Verification</strong>: Mark existing users as verified with customizable intervals</li>
<li><strong>User Status Monitoring</strong>: Track verification status across your user base</li>
</ul>
<h4><strong>Email Customization</strong></h4>
<ul>
<li><strong>Custom Email Templates</strong>: Personalize verification and notification emails</li>
<li><strong>WPAutoP Support</strong>: Enable/disable automatic paragraph formatting in emails</li>
<li><strong>Branded Communications</strong>: Add your logo and customize email appearance</li>
<li><strong>Multiple Email Types</strong>: Templates for registration, verification, OTP, magic login, and activation</li>
</ul>
<h4><strong>WooCommerce Compatibility</strong></h4>
<ul>
<li><strong>E-commerce Ready</strong>: Full integration with WooCommerce login, registration, and password reset forms</li>
<li><strong>Customer Protection</strong>: Prevent fake customer registrations and protect customer data</li>
<li><strong>Seamless Experience</strong>: Maintain smooth checkout process while ensuring security</li>
</ul>
<h3>🎯 Perfect For:</h3>
<ul>
<li><strong>Membership Sites</strong>: Protect exclusive content with verified users only</li>
<li><strong>E-commerce Stores</strong>: Prevent fake customer accounts and fraudulent orders  </li>
<li><strong>Corporate Websites</strong>: Ensure legitimate user registrations for business platforms</li>
<li><strong>Community Forums</strong>: Maintain quality user base with verified members</li>
<li><strong>Educational Platforms</strong>: Secure student and instructor account creation</li>
<li><strong>Any WordPress Site</strong>: Enhance security for blogs, portfolios, and business websites</li>
</ul>
<h3>⚡ Easy Setup & Management</h3>
<ul>
<li><strong>User-Friendly Interface</strong>: Intuitive admin dashboard for all configurations</li>
<li><strong>Shortcode Ready</strong>: Simple shortcodes for frontend form implementation</li>
<li><strong>One-Click Configuration</strong>: Enable/disable features with simple toggle switches</li>
<li><strong>Comprehensive Documentation</strong>: Detailed setup guides and troubleshooting support</li>
</ul>
<h3>🔧 Technical Specifications</h3>
<ul>
<li><strong>WordPress Compatibility</strong>: Works with latest WordPress versions</li>
<li><strong>PHP 7.4+ Support</strong>: Modern PHP compatibility for optimal performance</li>
<li><strong>Mobile Responsive</strong>: All forms and interfaces work perfectly on mobile devices</li>
<li><strong>Translation Ready</strong>: Multi-language support for global websites</li>
<li><strong>Developer Friendly</strong>: Clean code structure with hooks and filters for customization</li>
</ul>
<h3>📧 Default Email Configuration</h3>
<ul>
<li><strong>Professional Setup</strong>: Comes with pre-configured professional email settings</li>
<li><strong>Custom From Address</strong>: Set your preferred sender email (e.g., public.nurhasan@gmail.com)</li>
<li><strong>Branded Sender Name</strong>: Customize sender name (default: wordpress)</li>
<li><strong>Template Variety</strong>: Multiple email templates for different verification scenarios</li>
</ul>
<h3>🚀 Why Choose User Verification?</h3>
<ol>
<li><strong>Complete Security Solution</strong>: Multiple authentication methods in one plugin</li>
<li><strong>Zero Spam Guarantee</strong>: Advanced filtering eliminates fake registrations</li>
<li><strong>User Experience Focused</strong>: Smooth verification process that doesn’t frustrate legitimate users</li>
<li><strong>Highly Customizable</strong>: Adapt every aspect to match your site’s needs</li>
<li><strong>Regular Updates</strong>: Continuously updated with new features and security improvements</li>
<li><strong>Professional Support</strong>: Dedicated support for setup and troubleshooting</li>
</ol>
<h3>Installation & Usage</h3>
<p>Simply install the plugin, configure your preferred verification methods, and add the provided shortcodes to your pages. The plugin integrates seamlessly with WordPress default forms and popular plugins like WooCommerce.</p>
<p><strong>Transform your WordPress site security today with User Verification – the most comprehensive user authentication plugin available.</strong></p>
<h3>External services</h3>
<h3>Spam Protection by [https://isspammy.com](http://isspammy.com)</h3>
<p>isspammy.com is owned by PickPlugins and it’s used to protect spam users from login in, registering, commenting, posting reviews and etc. Once you mark a comment as spam it will send a request to isspammy.com and it will create a record for this mail and marked as spam, so later when the same email is used to post a comment it will block them as a spammer. isspammy.com is commited to keep user email private and only accessible when requested.</p>
<ul>
<li><a href="http://isspammy.com/privacy-policy/" rel="nofollow ugc">isspammy.com/privacy-policy/</a></li>
<li><a href="http://isspammy.com/privacy-policy/" rel="nofollow ugc">isspammy.com/About Us/</a></li>
</ul>


User Verification by PickPlugins


There was an error after I opened the plugin. It started well, but I don't know what I configured to cause the problem.



[18-Feb-2025 08:44:58 UTC] PHP Warning: Trying to access array offset on value of type null in /data/wwwroot/wordpress/wp-content/plugins/post-smtp/Postman/PostmanEmailLogs.php on line 724


Trying to access array offset on value of type null


I am writing to support for the second time. The WooCommerce section is not working! Settings are not being saved. Could you at least respond and explain why? Is it a paid feature or a bug on your side?


woocommerce problems

Email verification for user registration to protect spam.

Mailgun Email Validator vs User Verification by PickPlugins