MessageLabs task 'Update registered users for domain' fails in POA with the following error message:
SOAP Error: Server, MLWSE: Access Denied - Domain does not have the RegisteredUser service: An unexpected system error has occurred, please try again later. If the problem persists please contact your service provider support team quoting reference $REFERENCE_NUMBER
While processing the task, POA sends request to MessageLabs via their API and receives the error specified in the failed task.
Contact the Messagelabs Support Team with the reference number mentioned in the failed task properties in POA Task Manager to clarify the details regarding the problem domain.