How to generate a Mail User Report?
Perform the following steps to generate a Mail User Report:
Select Exchange Online Reports from the available vertical tabs. Then from left pane of the application, select Mail Users.
For demonstration purpose "Mail User General Information and Address Details" report has been chosen.
On selecting "Mail User General Information and Address Details" report, a pop-up window will be displayed as shown below:
 

     
  • Select the desired mail user and Click OK... button to display the respective user details.

     
During data collection, the window is displayed as shown below.
 

     
Once the data collection process is complete, the report data will be displayed in a report window as shown below:
 

     
Columns to be displayed on the Grid can be selected from the dropdown. By default, all columns are displayed.
 
After selecting the desired column from the dropdown, Click Refresh button.
 
Follow the above mentioned steps to run the Mail User reports.