Yahoo Verizon Email password not working

I tried to sign into the Verizon Yahoo email portal and it states that it's an incorrect password.  I go to the website and changed the password, then I can not access the yahoo/verizon email from outlook, yahoo/verizon home page, or from smart phone.  I can get in the back way through the website as a last resort.  I use this email for work, outlook is a requirement.  Please help!!!