You can still recieve important messages etc from CC.com if you update your Public, published email address with "email(at)address.com" [e.g. "oly(at)cascadeclimbers.com" instead of "oly@cascadeclimbers.com"]. This address can be updated in #2 in this picture, which depicts part of the "My Profile" screen found in the "MyStuff" menu...
Leave the address in #1 alone, as that is the one used by the board to communicate...it is not published.