Migration to yahoo is a NIGHTMARE

I have been able to use Yahoo to email.  I'm sending and receiving just find.  However, I want to do so in Outlook.  Please don't send over the settings.  I have tried it all.  I DELETED my account and started from scratch.  I simply says there is trouble connecting to the server.  I have cleared/deleted/reset/shutdown antivirus (It was working fine before)   I have an outlook.com email that is working fine.  What can I do to use outlook again???