Larry Moore - 2020-06-26

If all your mail settings on Eudora are correct as listed in section 1 & 2,
then click on the link in section 3 to obtain a 3rd party password required
to access Yahoo email using Eudora:

Section 1

pop.mail.yahoo.com
Require alternate port

Section 2

smtp.mail.yahoo.com
Authenticaation allowed
Use Relay personality (If Yahoo is not your dominant account)
Use submission port 587

Section 3

Generate third app password
https://help.yahoo.com/kb/access-yahoo-mail-third-party-apps-sln15241.html

To remove your old password and replace it with the new one, click on "Special"
then "Forget Password(s)" and select the yahoo account and remove the password.
After which, click on "File," then "Check Mail" and enter the new Yahoo password.