Problems connecting to AT&T Yahoo email on my iPhone after upgrade to 13.5 and iPad to
I upgraded to 13.5 on my iPhone X and 12.4.7 on my iPad Air, after which I started getting errors when trying to get ATT Yahoo email. I still receive mail from my Google account, but my ATT Yahoo account will not connect. I've tried deleting the account on my iPad and re-adding it with no success. When I go in and try to add the account service, it briefly opens a web page on imap.mail.att.net and then closes. My account is still working on my iMAC so I know my userid and password are correct.
I have not deleted the account on my iPhone, but am still not able to authenticate on it to ATT Yahoo either. Same issue, opens the web page and then closes.
iPhone X