Hi Adam,
First you need to sign up for the email facility - then I guess it's the same password as your normal account unless they send you a password!? If you haven't registered (even though it's free, you still have to register because you have to see if the email address you want is available) then you need to register and if you have, there is likely a "forgotten password?" option!
Hope that helps,
Tim
how do i figure out what my email password is? i never set it and when i log into chess.com i say "login with facebook"
Thanks.