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Aucbvax.3011 fa.unix-wizards utzoo!decvax!ucbvax!unix-wizards Tue Sep 8 12:16:23 1981 /usr/spool/mail >From menlo70!hao!pag@Berkeley Tue Sep 8 12:09:30 1981 In addition to security problems inherent in having /usr/spool/mail writeable, the mail mechanism of removing mailboxes also proved annoying in the following respect. If someone wanted to protect their mailbox from reading (chmod 0600 ), it would last only as long as the mailbox, ie, not too long! We made a few minor changes that leave mailboxes zero length -- then access bits have meaning.

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