I recently sent a bug report to cc-mode-bugs(a)xemacs.org.  I just got a reply
from Martin Stjernholm who said, in part:
 Btw, the proper bug report address is bug-cc-mode(a)gnu.org. The one
you
 used apparently redirected to that, but since the receiver wasn't
 correct it got held for approval among all the spams, so I could've
 missed it easily. I'd prefer if that alias was removed. 
-- 
Jerry James
http://people.eecs.ku.edu/~james/