I have Mail on my laptop - I can no longer use it as I now get a message saying Mail cant verify identity of server
I can no longer use Mail on my laptop. I get a message saying 'the certificate is invalid. Mail cant verify identity of server outlook office 365.com'
I bought MicrosoftOffice with word etc in 2011 - do I have to buy it again?
MacBook Air 13", macOS 10.14