Rocketmail address asks for SMS confirmation?

I have an email address that I created before every new account needed SMS confirmation. I have the correct password, and it starts to log in, but stops and asks for a number to receive a confirmation code. I do not own a cell phone and never added one to the account. How would it help confirm my identity if I have never attached a number to the account in question? If someone else had my password they could use their own number to "confirm" and then log into the account. It seems like discrimination to have my address locked due to a requirement that was added long after I created it.