Just installed Blackberry Enterpise Server Express 5.0. All services are running. When I setup a new users and click "create a user with generated activation password" everything looks ok but the last line says "One or more errors occurred. BlackBerry enabled users were not created." In the event log, Event ID 10000 is logged for Blackberry Mail Store Service, with this info: Failed to mail Subject BlackBerry activation password to firstname.lastname@example.org.
Nothing I can find addresses this specific message. This is an Exchange 2010 Server running on Server 2008R2.