When we publish out a shared desktop in Citrix we restrict the control panel items via Group Policy (seen below) that way non admins using the desktop do not have access to system management items. So we need to make exceptions and the Mail icon is included with this.

The items listed above are the items that we have exceptions for. For some of the items I was able to I was able to simply write the “visual name” of the item in the control panel and then the icon would show up. However the ticket was delayed as I needed to figure out what the magic bullet was. I tried Mail or Mail (32-bit) but the icon would not show up. So this morning I tried putting the actual application cpl name and “voila”, it shows up.