Overseas access requires a VPN
I am in China. I can visually see my mail items but I am unable to do any actions like "Request" or "View". Once I started my VPN this problem went away. The VPN connection works maybe 50% of the time here and is not always available.
For days or weeks at a time the VPN service may not work, so this is preventing the usage of the mailbox site. Please correct the problem.