Trying to set up Yahoo in mail account. Won't accept password. Works fine on iPad and Yahoo mail. Don't know if it's possible but I might try synching the iPad to the Mac mini (late 2014) and see if my mail account, and other apps, connects.
Tried using the Apple forums about this but after a couple of days the members weren't able to find an answer that worked. Even tried Yahoo. Every time I tried to setup a chat the spinning beach ball popped up and wouldn't let me.