Cannot login to bellsouth.net email on old 2012 mac after changing password

ralphfromupnorth wrote:

I was able to get bellsouth.net email on my old Mac, but needed to change the password since it has been exposed. After changing the password, I tried to enter the new password on the Mail app on the Mac. This goes through Yahoo. It gets past username and password, then requires one time code, this works also but at the last step it fails to confirm through yahoo, "Failed to authenticate with Yahoo!, please try again later" The exact same procedure works fine on my iPhone 13. Is the Mail App on my 2012 just too old? It worked fine before changing the password. I've tried it 5 times, not a fat finger problem.

You'll need to get with Yahoo support to see if your Mac is too old to access their account.