Martin Lormes

If a comment is held for moderation an email message is sent to the comment author with a link to verify the comment author’s email address. When the comment author clicks on that link the comment gets approved immediately. This makes discussions more lively as users don’t have to wait for the blog admin to approve the comment.
Blog owners may also choose to hold the comments in the moderation queue even after successful verification. The verification status is shown in the comment lists in the admin.
If an author has a previously approved comment and his comments gets approved automatically according to the ‘comment_whitelist’ option in WordPress no email is sent.
If a comment is classified as spam by Akismet or another anti-spam plugin no email is sent.
This plugin uses the <code>commentmeta</code> table and thus requires WordPress 2.9
PHP5 strongly recommended

Comment E-Mail Verification

Wish it supported embedded html in the verification email. One note. You must have Settings -> Discussion -> Comment must be manually approved checked in order for it to work. Once I figured that out, it works just fine.

Still works

If a comment is held for moderation an email message is sent to the comment author with a link to verify the comment author's email address.

quickemailverification

An email verification plugin by <a href="http://quickemailverification.com" rel="nofollow ugc">QuickEmailVerification</a> enables you to validate and verify the email address existence in real time, before you actually send them an email. Its unique email verification system is composed of multiple different validations starting from syntax checking to the end users’ mailbox existence checking. It not only detects invalid email addresses but also detects many other types of poor email addresses which could negatively impact the email deliverability and harm your sender reputation.
This plugin need a QuickEmailVerification API key to verify. You can get it from <a href="https://quickemailverification.com/apisettings" title="Get your API key" rel="nofollow ugc">API settings</a> page of QuickEmailVerification service.
<h4>Key features</h4>
<ul>
<li>Email address syntax checking</li>
<li>Domain/MX records checking</li>
<li>Role address detection</li>
<li>Disposable email address (DEA) detection</li>
<li>Free email service detection</li>
<li>Typo detection and suggestion</li>
<li>Accept all email checking</li>
<li>Mailbox existence checking</li>
</ul>
<h4>Supported form Plugins</h4>
<ul>
<li>Contact Form 7</li>
<li>Formidable forms</li>
<li>Ninja forms</li>
<li>WooCommerce</li>
<li>WPForms</li>
<li>Profile Builder</li>
<li>Contact Form by BestWebSoft</li>
<li>Ultimate Member registration form</li>
<li>Fluent Forms</li>
<li>WPEverest forms</li>
<li>MailPoet</li>
<li>Theme My Login</li>
<li>WP-Members</li>
<li>Visual Form Builder</li>
<li>PlanSo forms</li>
<li>Buddypress registration form</li>
<li>Any other form which uses the is_email() function</li>
</ul>
This plugin works either with “is_email()” function or with any other supported form plugins. So if any supported form plugin is enabled, “is_email()” hook will automatically be disabled.
To know more about email verification results, please have a look at the <a href="http://docs.quickemailverification.com/getting-started/understanding-email-verification-result" rel="nofollow ugc">QuickEmailVerification knowledge base</a>.

QuickEmailVerification

The QuickEmailVerification email verification plugin to avoid fake, bad and nonexistent emails.

Comment E-Mail Verification vs QuickEmailVerification