Outlook—Making a distribution list
A Distribution list is essentially an email group. You add people and email addresses to this group and when you want to send a message to everyone, you need only send it to the group.
Start by clicking Contacts on the left side of Outlook.
Then choose New >> Distribution List.
In the window that comes up, you will need to name the distribution list. To add people, there are 2 options: Select Members and Add New. Select Members allows you to add people from the address book, while Add New will allow you to simply add email addresses that don't appear in the address book.

After you have added the addresses you want to send to, you can click Save and Close.

Now we can create a new message and in the To: field, type the name of yourDistribution list and hit Control+K to look up the address. You can now send to your distribution list.

You now should be able to create your own distribution lists in Outlook.
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