How do i get rid of the annoying messages that "couldn't sign in" for yahoo email

[AC Question]

Constantly getting notices that couldn't sign in for Yahoo email. They are very annoying.

 

[Rukbat]

If you can't ever sign in, delete the account and add it again.

If it's intermittent, it could be your carrier's path to Yahoo mail (and there's nothing you can do about it).

 

[ManiacJoe]

If you are not using the Yahoo app, you may need to setup a "app password" for your email app. This is a new security "feature" of Yahoo. See the Yahoo email website for details.