There are four types of groups within Office 365: distribution lists, security groups, mail-enabled security groups, and Office 365 lists. There are also shared mailboxes, but they have their own heading. We'll discuss the differences in Chapter 4, Administering Exchange Online – Essentials:
The Groups page
When you click on any group, a panel will open (usually to the right) displaying its properties, and you can edit many of the properties right there.
Distribution lists and mail-enabled security groups primarily live in Exchange, so their panels offer direct links to Exchange, to do further editing there, if desired.
Office 365 Groups ...
