I would try adding this email to the Safe Senders List. You can do this by right clicking the email in question and then scrolling down to the Junk Mail section and selecting the “Add to Safe Senders List”. You might want to check Tools, Options, Junk E-mail Options, and see if your protection is maybe turned up too high; Low is the default and then see if the last box is checked also pertaining to not turning on links to it deems unsafe. Nex check the Tools, Options, then Security tab and click on the Change Automatic Download settings and ensure all the boxes are checked. This is the default.