What is xRM? It's Microsoft Dynamics CRM!
Powershell and Microsoft Dynamics CRM (#msdyncrm)

O365 and New Applications

One of the benefits of Office 365 is that it is continually providing you with new applications and features. Microsoft Dynamics CRM continues to deepen and connect with these features as well.

Take for instance Groups

Take a look at this nice video that summarizes what groups are and what you can use them with and remember group mail can also be tracked in Dynamics CRM.