WooCommerce Email Blacklist Plugin allows store owners to automatically block and reject orders from specific email addresses during checkout and payment processing.

This plugin helps protect your store from fraud, spam orders, abuse, and repeat offenders by detecting restricted billing or payer email addresses and rejecting the order immediately after payment confirmation.

When a restricted email is detected, the order is automatically marked as rejected, an audit note is added for administrators, and an optional notification email is sent to the customer explaining the rejection.

The plugin integrates seamlessly with WooCommerce and runs silently in the background without affecting legitimate customers.

Key Features

• Block orders by specific email addresses

• Detect restricted billing and payment email addresses

• Automatically reject orders that match blacklist rules

• Add clear audit notes to rejected orders for admin review

• Optional rejection email sent to customers

• Lightweight, fast, and no third-party dependencies

• Uses native WooCommerce hooks and APIs