Here’s the link:
https://support.office.com/en-us/article/set-up...
You’d choose advanced setup>internet email & use the Yahoo server details:
Yahoo! IMAP incoming mail server:
imap.mail.yahoo.com:993:1
SSL yes
Yahoo! SMTP outgoing mail server:
smtp.mail.yahoo.com:465:1 or smtp.mail.yahoo.com:587:1
SSL yes
Require authentication Yes
Username is your full email address
Password is the account password.
https://help.yahoo.com/kb/SLN4075.html
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.