The simple answer to your question is "no" and "no such measures are
necessary".
However, make sure that NFS is not involved in accessing the mailbox file
or the /tmp directory.
On Thu, 14 Apr 2005, Mark Brand wrote:
Please consider 2 situations where messages are moved from spool files
into mbx INBOX files in users home directories:
A. c-client software automatically moves mail when software accesses
incoming spool file.
B. Someone explicitly invokes "mailutil appenddelete".
The question is: Can corruption of the incoming spool file arise due to
conflicts with software (such as postfix) that is delivering mail to the
spool file? If so, what measures should be taken to prevent this from
happening?
-- Mark --
http://staff.washington.edu/mrc
Science does not emerge from voting, party politics, or public debate.
Si vis pacem, para bellum.