To sign in with the new yahoo mail, you now have to go through the 2-step verification process. I choose to text code to my phone. Then it says after this 2-step verification code is entered, you won't be asked to do the 2-step verification code next time you sign in. However, every time I go to sign in to my email (every day) it makes me go through the 2-step verification process anyway. If this is a glitch with the new yahoo mail, it needs to be fixed. Thank you, Sandra Pesce.