Mastering Office 365 Administration

Configuring organization-wide settings 

Oddly enough, organization-wide settings are given a second billing, underneath the section for managing users, but this is probably the first place you'll want to go when you first set up your tenant. 

Settings are organized into two tabs: general and external communications:

Skype general organization-wide settings

In the general tab, there are only three settings: presence privacy mode, Microsoft Push Notification Service, and Apple Push Notification Service.

Let's consider presence privacy mode for a moment. By default, anyone can access your presence information—whether they're in your Skype for ...