Aucbvax.2969
fa.unix-wizards
utzoo!decvax!ucbvax!unix-wizards
Tue Sep  8 01:27:31 1981
making /usr/spool/mail unwritable
>From allegra!phr@Berkeley Tue Sep  8 00:20:03 1981

The problem with this is that many non-suid mail readers, Berkeley
4.0bsd mail included, unlink the mail file when the last message is
removed instead of truncating it.  I haven't bothered to fix this yet;
has anyone?
					Paul Rubin
					mhtsa!allegra!phr