Open the desktop version of Outlook.
Press Ctrl + Shift + B to bring up the Address Book.
In the Address Book pull down menu, select All Distribution Lists.
In the Search: box, type in DS - DigitalMarketing.
Double click DS - DigitalMarketing to select the distribution list.
In the window that opens, click Modify Members…
In the Contact Group Membership window, Click Add…
In the Add Users window click the Address Book: pull down menu and select Global Address List.
In the Search: box, type in the employee’s name.
Double click the employee’s name in the search results.
Click OK. The Add Users window will close.
Click OK in the Contact Group Membership window.
Click OK once more in the next window.