The following article will assist the user in viewing the Distribution Lists to which you are assigned. Depending on the list settings, you may be able to request addition to, or removal from a list, or view the other members of the list.
1. Log into the Outlook Web App, at https://na02.msexchangeoutlook.com/
2. Click the Options icon in the top-right corner.
3. Select Options, from the gear icon drop-down menu.
4. Click Groups from the left-hand menu.
The Distribution Groups I Belong To window will display the lists to which you are assigned. Double-click on a list to view its details.