To use the Distribution Service to send users email notifications or to distribute emails, you must enable it through Global Client Settings. (This step is not necessary if the Distribution Service is used only by WorkView.)
The Distribution Service can be used to send email distributions while using the Document Distribution module and is optional.
The Distribution Service is optional if you want to send notifications for the following modules in the OnBase Client: Document Knowledge Transfer, Workflow, and Physical Records Management. The Distribution Service is required for all other modules that are able to send notifications (such as Document Knowledge Transfer or Workflow in the Web Client).