shawfactor

mattsenate

This plugin is can be used for petitions, events, or any verified list and as far as I know is unique in WordPress.
Creating a petition/list/signup is as easy as adding a shortcode to a post or page (or CPT). From there additional editors are available to configure easch aspect of the sign up. Everything is completely self hosted and all list members become users of your site (not a third parties).
Available shortcodes:
[lh_signing_form] (enable signatories on any post, page, or custom post type)
Unconfirmed signatories: [lh_signing_unconfirmed_count]
Confirmed signatories: [lh_signing_confirmed_count]
Total signatories: [lh_signing_total_count]
[lh_signing_unconfirmed_list] (unformated list)
[lh_signing_confirmed_list] (unformated list)
You can customise the display of the signing form ([lh_signing_form]) via a number of shortcode arguments more information is available <a href="https://lhero.org/portfolio/lh-signing/" title="Additional Plugin documentation" rel="nofollow ugc">here</a>

LH Signing

LH Signing allows you to create configurable validated lists like petitions or event sign ups. It is the only self hosted solution in WP

UserCheck

UserCheck prevents disposable or throwaway email addresses from registering or commenting on your site. This helps to protect your site from spam and maintain the quality of your user base.
<h4>Key Features</h4>
<ul>
<li>Automatically checks email addresses against a constantly updated database of disposable email domains</li>
<li>Works out of the box with no configuration required</li>
<li>Seamlessly integrates with WordPress registration and comment forms</li>
</ul>
The plugin uses the API provided by <a href="https://www.usercheck.com" rel="nofollow ugc">UserCheck</a>, which is constantly updated to include the latest disposable email domains. This ensures your site stays protected against new disposable email providers.
<h3>Privacy Policy</h3>
UserCheck sends email domains to the UserCheck API for validation. No personal data or full email addresses are transmitted. For more information on how UserCheck handles data, please visit <a href="https://www.usercheck.com/privacy" rel="nofollow ugc">https://www.usercheck.com/privacy</a>.

Protect your WordPress site from disposable email addresses using the UserCheck API.

LH Signing vs UserCheck