Getting started with BlackBerry® Enterprise Server Express is easy. There's a deployment model designed to meet your needs.
For small businesses
Installed on your existing Microsoft® Exchange Server or Windows® Small Business Server
For medium- to large-sized businesses
Installed on a separate server for Microsoft Exchange Server or Windows Small Business Server, or dedicated server for IBM® Lotus® Domino®
For large businesses and enterprise
Hybrid deployment for Microsoft Exchange or IBM Lotus Domino