If you are getting below error message when you are opening a link from Outlook mail (if you are using IE as default browser) the problem could be Chrome or Firefox is not properly removed or it has damaged the registry. so what you can do is just uninstall and reinstall the Chrome / Firefox and set Chrome / Firefox as default browser.
Again If you opened IE it will ask you whether you want to set IE as default browser are not. Select IE as default browser and check the link from mail. It should work. If you don’t need Chrome / Firefox then you can uninstall it.
This is the easiest way to fix the problem. Before, I did IE reset and registry changes but no luck.