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- Extract the module archive which you downloaded from the client area.
- Upload the module to your Blesta installation.
- Go to the Blesta Admin backend, click on Settings → Plugins → Available → Mail Tracker For Blesta and activate the module.
- Click on the "Manage" link and insert your license key. Information about each option can be found here.
- Add the tracking tag to your mail templates.
If you have multiple companies, you need to activate the plugin at every company where you want to use the plugin.