Transition to Yahoo using OUTLOOK 2021 on PC

I'm in the process of transitioning to Yahoo.  In the Chrome Browse I can access prefectly.

In Office Outlook 2021 MSO after changing all the account settings using the POP3 and SMTP settings I get this message:

Log onto incoming mail server (POP3) your email server rejected your logo.  Verify your user name and password for this account in Account Settings.  The server responded: ERR [SYS/TEMP] Sever error - Please try again later.

I have double and tripled check all of this and over the 2 days and still getting the same errors.

It seems as though this is a Yahoo Server error.

Can any one offer and assistance/checks to make

DJ New Orleans