You can activate one or more message types by publishing them. You can publish a message type by selecting Yes in the Publish radio button while adding or editing a message type. Alternatively, you can perform the following steps to publish an already existing message type:
To publish a message type:
1. Navigate to Components-> .JoomSuite Inbox-> Message Types in the Joomla global menu. The Inbox Message Types page appears and displays the list of existing message types.
2. Select the check box corresponding to the message type you want to publish. Click the Publish button  in the toolbar, as shown in the following figure:
A tick mark appears under the Publish column corresponding to the message type you published.
To unpublish a message type, select the message type and click the Unpublish button in the toolbar.
To publish or unpublish multiple message types, select the check boxes corresponding to the message types, and click the Publish or Unpublish button in the toolbar.