Possible solution for Red Triangle issue on v9 (Yahoo POP/SMTP servers)

I use att.net (yahoo-based server) POP/SMTP. I could send and receive with no issues on v8 of emClient. v9 upgrade worked for about a day then … the red triangle of death.

I did a little research and decided to create the Oauth security key on the ATT side and put that key in the eM Client account password field and viola, works perfectly again.