How to Create an Email Group
From the left navigation menu, click Org or Team Tools > Email Center.
Click Email Groups.
Click Add New.
Name the Email Group.
Select Available Active Accounts using CTRL + Click, or by dragging.
Click Add.
Click Save Changes.
How to Delete an Email Group
From the left navigation menu, click Org or Team Tools > Email Center.
Click Email Groups.
Select the Email Group(s).
Click Delete.
To confirm the deletion, click OK.
How to Edit an Email Group
From the left navigation menu, click Org or Team Tools > Email Center.
Click Email Groups.
Click the Email Group's name.
Add/Remove the accounts as desired.
Click Save Changes.