You can use the Exchange Management Shell to search the administrator audit logs and generate reports based on the cmdlets and parameters used to modify objects within your Exchange environment. Like mailbox audit log reports, we have two ways in which we can view the audit logs from the Exchange Management Shell, and in this recipe we'll take a look at both the methods.
Search-AdminAuditLogcmdlet. For example, after executing the following command, the results will be displayed in the shell:
Search-AdminAuditLog -Cmdlets Set-Mailbox ` -StartDate 1/1/2013 ` -EndDate 1/31/2013 ` -IsSuccess $true
This command ...