It is not POP, it is IMAP. When setting up Yahoo Mail, DONT select that icon, instead, select “Other” and manually enter the information in. This will give you the options to choose the Incoming and Outgoing Server Settings.
For Incoming Mail Settings, the IMAP Server is “android.imap.mail.yahoo.com“, the Security Type is “SSL“, and the Server Port is “993“.
For Outgoing Mail Settings, SMTP Server is “android.smtp.mail.yahoo.com“, the Security Type is “SSL“, and the Port is “465“. Also, make sure you check the “Require sign-in” box.
During this set up, you will be asked if you want to keep the original emails on the server or delete them.
Once this is complete, you should be able to see your folders. Mine showed up right away. However, only emails that were placed in the folders within the last month were downloaded. I assume this is due to the “Sync Settings”.
If you choose POP server For Incoming Mail Settings, the POP Server is “plus.imap.mail.yahoo.com“, the Security Type is “SSL“, and the Server Port is “995“.