Earlier in November, Microsoft released the beta version of Office 365 Integration Module for Windows SBS 2011 Essentials. Today this free add-in is now out of beta and can be downloaded at the Microsoft Download Centre.
OIM for Windows SBS 2011 Essentials for Windows SBS 2011 Essentials Dashboard enables you to subscribe to, monitor, and manage Office 365 accounts directly from the server Dashboard. OIM extends the features of the server Dashboard by providing seamless integration with Office 365 services.
For information about how to install and configure the OIM, and manage Office 365 accounts, see “Integrating Office 365 with Windows Small Business Server 2011 Essentials.