How to save an extra copy of incoming mail?

[pfaffben@pilot.msu.edu (Ben Pfaff)]

For a research project here at the university (Michigan State Univ.),
we are doing a study of the value of different communication methods
to allow distributed engineering teams to collaborate.  In doing this,
we'd like to have all the participants send their mail through a
central server, and have the server, in addition to putting mail in
their usual mailboxes, save it in another location for use by the
researchers.

Example:
	Foo is a student participating in the project.  He arranges to
relay all his project-related e-mail through our server, and to
receive all his project-related e-mail through the server.  How can
smail, or sendmail, or qmail, or whatever, be configured to save this
traffic (both directions) in an extra mailbox file?

Thanks in advance,

Ben.


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