How to Fix Yahoo Mail not Working on my Mac?

When mail errors occur, it is primarily due to the invalid settings that had been accidentally configured. There can be many reasons for Yahoo Mail not working on Mac that would prevent you from accessing your account. The most general cause behind Yahoo Mail not working is the internet connectivity issue. So, ensure that you have a stable internet connection. Also, keep your Mac OS and Mac Mail app up-to-date. Also, check the Yahoo Mail server.