Chema

Email Validator is a FREE lightweight and high-performance WordPress plugin that provides real-time email address validation during registration and form submissions on your website. It efficiently detects disposable email addresses and guarantees that only valid email addresses are accepted, enhancing the integrity of your user data.
<h3>Features</h3>
<ul>
<li>Validates email addresses in real-time.</li>
<li>Prevents registration with disposable email addresses.</li>
<li>Checks for valid email format using RFC 822.</li>
<li>Verifies DNS MX records for email domains.</li>
</ul>
<h3>Usage</h3>
Email validation is automatically applied during user registration and other form submissions. If an invalid or disposable email address is entered, users will be notified of the issue and asked to provide a valid email address.Email Validator is free software distributed under the terms of the GNU General Public License. For more information, visit <a href="https://www.gnu.org/licenses/gpl-3.0.html" rel="nofollow ugc">the official GPL page</a>.
Uses https://github.com/ivolo/disposable-email-domains/ to get an updated list of disposable email domains.
For support and feedback, please visit the <a href="https://wordpress.org/plugins/email-validator/" rel="ugc">plugin page on WordPress.org</a>.

Better Email Validator

Email Validator is a FREE lightweight and high-performance WordPress plugin that provides real-time email address validation during registration and f …

joern.zaefferer

Ever got annoyed when submitting a comment on a wordpress blog and just getting a blank page with a error message like “please fill out required fields” and nothing else? This plugin aims to help by adding validation to the comment form. When a user submits the form and something is missing, an appropiate message is displayed and individual fields are highlighted. When the email or url is in an incorrect format, a message is displayed accordingly.
Why should you install it? Because you care for comments and want to help users reduce mistakes that hold them off from commenting at all.
Whats the technology used? <a href="http://jquery.com" rel="nofollow ugc">jQuery</a> and the <a href="http://bassistance.de/jquery-plugins/jquery-plugin-validation/" rel="nofollow ugc">jQuery Validation plugin</a> with a few customizations to make it fit into the standard WordPress theme.
Is it compatible with other plugins? The plugin is tested with the <a href="https://wordpress.org/extend/plugins/draw-comments/" rel="ugc">Draw Comments</a> plugin and works, though the performance is slightly degraded. Other plugins haven’t yet been tested.

Comment Validation

This plugin adds client-side validation to the Wordpress comment form, using the jQuery validation plugin.

Better Email Validator vs Comment Validation