When Exchange services are provisioned to customers, users can view distribution groups through the Global Address List using Outlook, as well as create and manage distribution groups.
Users who create distribution groups are known as owners. Additionally, group ownership can be assigned to a group of Exchange users or a security group. Group owners can add and remove members through Outlook.
Full Customer Service Administrators can create and delete groups, manage group members, and configure group email alias permissions and member email restrictions.
To prevent external "spam" emails from flooding the group, you can configure distribution groups to accept email only from users within the customer's organization.
You can assign certain users to send email using the distribution group alias. To recipients, the sender appears as the name of the distribution group instead of the individual user.