It just means that the calendar server from Yahoo has a broken certificate chain.
You could remove your calendar subscription from the Mail preferences.
It just means that the calendar server from Yahoo has a broken certificate chain.
You could remove your calendar subscription from the Mail preferences.
I have this happen very often when I am on hotel WiFi and my session expires. If you are on your home network and internet is working OK for you, press continue and see what happens
I have this happen very often when I am on hotel WiFi and my session expires. If you are on your home network and internet is working OK for you, press continue and see what happens