Mail address tester for Shopware 6

Mail address tester is an open-source Shopware 6 plugin developed by Friends of Shopware. The extension validates customer email addresses during registration and checkout workflows by verifying whether the mailbox is accessible on the target mail server.

By testing the mailbox against the destination mail server, the plugin helps identify typos, invalid mailboxes, and fake email addresses early in the process. This helps minimize bounce rates for order confirmations and automated system emails, supporting overall email deliverability for the store.

The plugin is designed for store owners who want to maintain high data quality for customer contact information during account creation and checkout.

Key Features at a Glance

• Validates email addresses during customer registration and checkout.
• Checks mailbox accessibility and potential validity on the destination mail server.
• Helps reduce bounce rates and failed email deliveries.
• Supports Shopware 6.6 and Shopware 6.7 according to project configuration.
• Open-source plugin developed by Friends of Shopware.

Open Source and License Notice

This plugin is based on the open-source project FroshMailAddressTester by Friends of Shopware and is distributed through our platform. Unless stated otherwise, this plugin is provided under the terms of the MIT License. The original copyright notice and the full license text are included in the plugin package.

Copyright (c) 2025 FriendsOfShopware

The software is provided “as is”, without warranty of any kind, to the extent permitted by applicable law. The terms of the MIT License shall prevail. You can find the full license text in the plugin package and at: https://github.com/FriendsOfShopware/FroshMailAddressTester/blob/main/LICENSE.