Thank you, that helps a lot to know. That will mean that the support is at Yahoo; however, here are detailed instructions that may assist you: https://forums.cox.com/discussions/internet/yahoo-email-transition---iphone-setup/151823 .
Ok, the key is when you log into yahoo and create the account, you will then need to generate a passcode to use when setting up on the Mac. When you go to set up on the Mac use your Cox account and use the newly generated password from yahoo. Once it lets you create the account on the Mac you then need to change the IMAP and SMTP settings to ....mail.yahoo.com. Then using the newly generated yahoo password it will let you set up the account on the Mac. (what a pain.)
Doesn’t work on Sonoma!
