Use a secure option to access Yahoo Mailĭon't worry! You have options to keep using your Yahoo Mail securely and without interruption: This is because those email apps use outdated security protocols and we've disabled access to them by default now. If you try to use Yahoo Mail in a third-party email client using less secure sign-in technology, you might get a 'Server password has changed' or an 'Authentication failed' error message.
If we sent you an email indicating that your app is using outdated security protocols or you're unable to log in from an older app, you still have several options available to you. By default, we block access to Yahoo Mail from outdated apps that could leave your account vulnerable.
