Adding Distribution List
see "What is Distribution List?"
Log in to the console, Click "Distribution List" on the dashboard menu, and "New List."

Enter the email address you want to create as a distribution list and click "Create."
- Hide in GAL: if you enable to create distribution lists that do not display in the Global Address List (GAL). You can use this feature to limit the exposure of the distribution list to only those that know the address.

Once the distribution list is created, you will see the new one on the list.

Now you can add some configuration for the distribution list