With this MageBridge connector, you can automatically add a customer to a Acymailing list, as soon as a product X has been purchased in Magento.
Whenever the Magento core saves an order to its own database, MageBridge triggers an event that is sent through the bridge-API to Joomla!, where it is transformed into a Joomla! plugin-event: This MageBridge process is called event forwarding. Thanks to this technology, Joomla! plugins can be used to react on Magento events. And in this case specifically, in the event that a Magento newsletter-subscription is modified.
This newsletter-plugin for Acymailing newsletter syncs Magento newsletters with Joomla!. Whenever a customer subscribes to or subscribes from the Magento newsletter, the change is synced to your Joomla!-based newsletter.