This is where it gets complicated (for me). I think I just downloaded and installed Yahoo as an app having previously used Samsung Mail if memory serves me. I wouldn't know how to use a web browser for this (if I am not using it already, unknowingly) and I don't understand IMAP. But if your advice is to try installing and using another email reader app which would allow me to log in to my Yahoo correspondence, but without all the ads, that could be an inspired solution! Any suggestions?