Yesterday I could open any link from my email. I have not downloaded any new programs. When I click on a link in an email the following is in the heading - nam06.safelinks.protection.outlook.com -
The page that opens has the Office 365 logo, which I don't use, and a exclamation mark in a red triangle with the words underneath - This web page could not be loaded. Due to an internal error, this web page could not be loaded. We recommend that you close this page. Learn more about malware.

I use Firefox however the problem also happens on IE as well as on my iPad so it appears to be an Outlook issue.

Any body else with similar issues?