>From menlo70!hao!woods at Berkeley Thu Sep 3 10:21:02 1981
Perhaps this is my ignorance showing through, but I don't see how
having /usr/spool/mail writable can allow you to become the super-user.
Perhaps you could illegally read other's mail, but...
P.S. Ours is not writable.
GREG (ucbvax!menlo70!hao!woods)