Autor: David Wheeler
Data:
A: exim-users, ijackson
Assumpte: [Exim] tmpfile() - old System V is NOT secure.
Oh heck, let's be specific. Older versions of System V Unix are
known to have _insecure_ implementations of tmpfile().
This is documented in the BSD documentation, e.g.:
http://www.gsp.com/cgi-bin/man.cgi?section=3&topic=tmpfile