My boss likes to use threads within his emails to look at what he has sent previously. (old Outlook user). When in an email he clicks show threads and they dutifully appear. But on clicking on the threads nothing happens. On mine I am allowed to look at the threads as individual emails. He has Management rights to his email file so I do not think this is the problem
Free Guide: Managing storage for virtual environments
Complete a brief survey to get a complimentary 70-page whitepaper featuring the best methods and solutions for your virtual environment, as well as hypervisor-specific management advice from TechTarget experts. Don’t miss out on this exclusive content!