mail problem

From: Murat Balci <balci_at_baum01.ege.edu.tr>
Date: Tue, 15 Aug 1995 21:51:09 +0400 (EET DST)

Hi,
I have a big mail problem. The permition of our /var/spool/mail dir is

drwxrwxrwx 2 root mail 16384 Aug 15 21:44 mail/

but in this case an ordinary user can delete all the mails !!

but when i turned this permition to read/execute-only, mail can't be
received and root got a mail something like,

The original message was received at Tue, 15 Aug 1995 21:38:29 +0400
from localhost

   ----- The following addresses had delivery problems -----
balci (unrecoverable error)

   ----- Transcript of session follows -----
binmail: cannot create lock file /usr/spool/mail/balci.lock
550 balci... Can't create output: Error 0

   ----- Original message follows -----

  [ Part 2: "Included Message" ]

Date: Tue, 15 Aug 1995 21:38:29 +0400
From: Mail Delivery Subsystem <MAILER-DAEMON_at_baum01.ege.edu.tr>
To: balci_at_baum01.ege.edu.tr
Subject: Returned mail: Can't create output: Error 0

and mail can't be delivered. If you have any idea please reply immediately.

ps* /bin/binmail is in 4711 mode.

Thanx in advance.
murat.

----
Murat Balci	UNIX sys. Admin	
s-mail : Ege Universitesi B.A.U.M - Bornova, IZMIR, TURKIYE.
e-mail : balci_at_baum01.ege.edu.tr	Phone :+(90)(232)3881080-253
Received on Tue Aug 15 1995 - 21:04:46 NZST

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