Did you try IMAP for Yahoo?
https://help.yahoo.com/kb/mobile-mail/imap-server-settings-sln4075.html
Have new Samsung Galaxy S6-email sync with Yahoo
Email sync issue
Using built in Email app.
Did a sync on the phone with Yahoo but NONE of my emails appear on the phone that I have in my folders on my laptop.
Thoughts?
Thanks in advance,
Peter

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