I'm surprised they want the receptionist opening all mail. It doesn't save people all that much time to open their own mail! And what if it's something confidential, for management's eyes only, that sort of thing? Better to have the receptionist just open mail that isn't addressed to anyone in particular so that she can determine which department or employee it should be delivered to.  The only exception would be business documents that need to be time stamped or their receipt recorded in some  manner.