Sorry for back to back.
I take it you are using Windows Outlook or whatever the current e-mail program MS are bundling is. In which case they might be wanting you to upgrade to a later version. BUT I wouldn't use any link sent in an e-mail.
When you open the program itself, if you click on help > about, it should tell you what version you are running, you can usually check for updates from there.
Better yet get yourself a new e-mail provider, Google, Yahoo, Hotmail etc.