Show mailbox sizes per organizational unit – Exchange 2010
Get-Mailbox -OrganizationalUnit “OU-Name” | Get-MailboxStatistics | ft displayName,TotalItemSize -Autosize
Get-MailboxStatistics | Sort -Property TotalItemsize | Format-Table DisplayName, LastLoggedOnUserAccount, ItemCount, @{expression={$_.totalitemsize.value.ToMB()};label=”Size(MB)”}, LastLogonTime, LastLogoffTime
