yahoo - invalid user/password

My email is yahoo.
The password before contained only lowercase letters and numbers and eM Client accepted.
When I change the password Yahoo does not accept lowercase only have to have at least one uppercase
The first letter of the password is uppercase and the rest lowercase letter followed by numbers.
The eM Client appears that yahoo rejected the password?
Several times already typed the password and yahoo always shows “invalid user name / password.”
The eM client does not differentiate uppercase from lowercase?

I am sorry but I cannot provide you any solution as the problem does not lie on our side. For more info see this topic:…