FlexaTech

Flexa Unsubscribe adds a complete unsubscribe workflow to every email WordPress sends, with a fully-branded admin UI for managing opt-outs, analytics, and the public unsubscribe page.
<ul>
<li>Auto-appends a secure unsubscribe button to outgoing single-recipient emails. Tokens are HMAC-signed using the <code>AUTH_KEY</code> in <code>wp-config.php</code>, so no database lookup is needed to verify a link.</li>
<li>Blocks outbound mail to unsubscribed addresses before it reaches the mail server. Blocked attempts are logged to a dedicated audit table.</li>
<li>Honours an exclude-keywords list (default: <code>Order, Password, Invoice</code>) so transactional mail never gets an unsubscribe link and never gets blocked.</li>
<li>Re-subscribe URL is supported as a first-class action – the plugin can tell opt-outs from opt-backs.</li>
<li>Customisable public page – every color, font, and string on the unsubscribe/re-subscribe templates is editable from the admin with a live preview.</li>
</ul>
All screens are powered by a REST API under <code>/wp-json/flexa-unsubscribe/v1/</code>, so external integrations can plug in too.
Documentation
Full user guide, technical reference, and REST API documentation are hosted at:
https://unsubscribe-doc.flexacommerce.com/
A “Documentation” link is also added to the plugin row on the Plugins screen for one-click access from inside WordPress.

Flexa Unsubscribe

Professional email unsubscribe management with HMAC tokens, auto-appended unsubscribe links, recipient blocking, and CSV import/export.

Ulrich

This simple setup creates a body class called “responsive” and “fixed-width” both are added to the body class of your Theme. These two classes are used to define whether or not the visitor wants a “responsive” environment.

Responsive Opt-Out

Responsive Opt-Out allows visitors of your site to switch between the flexible and fixed width layout.

Flexa Unsubscribe vs Responsive Opt-Out