In Outlook, viewing the members of a distribution list takes place in the Directory portion of the People window. It is not possible to expand a list in an email window to see its members. The Directory window is access in the following manner.
Open People by clicking on the profile icons in the bottom-left corner.
Expand the Directory tab and click on “All Distribution Lists”
Find and click on the g.list you are interested in. Members will show in the side pane. You may need to click “see all members” if there are many members. In some cases, a g. list is made up of other lists, as in the example below.
Article ID: 527
Created On: Wed, Oct 12, 2011 at 1:54 PM
Last Updated On: Wed, Dec 12, 2018 at 12:56 PM
Authored by: Joe Yamada
Online URL: https://kb.nsd.org/article-527.html