<p>Outlook certificate errors be like:</p><p>❌ The certificate is not signed by an authority you trust, and in fact is signed by the Alien Alliance for Human Destruction.<br />❌ The certificate uses an algorithm deprecated in 1876 due to being solvable on paper by bright kindergarteners. <br />❌ The expiration date is notated in a calendar unknown to our science.<br />✅ The certificate has a valid name</p>