Teachers can create and share contact groups in Outlook. Contact groups were formerly called distribution lists.

• Click here and follow these instructions in order to create your own Contact Group in Outlook. 
• Share a Contact Group you created with another person - if changes are made to the Contact Group AFTER the receiver has saved the Group, the new changes will not be reflected for the person you shared with. You will either need to reshare the Contact Group or the other person needs to make the change themselves in their own Outlook account.
• How to Save a Contact Group
• Send an email or meeting invite to your Contact Group
• Add people to a contact group in Outlook for PC