OT: Exchange public folders - who is copying?

["Stewart, John" <jo...@artesyncp.com>]

Mostly OT, but I know some others on here are doing the same thing as I on
their Exchange systems (using public folders as repositories for sa-learn).
I've posted to an Exchange newsgroup, but thought it was worth throwing out
here to see if anyone has an idea.

We are running Exchange 5.5.

We have a few public folders for users to copy email to, to train our
anti-spam system (SpamAssassin) in the case of false positives or
negatives.

Someone is copying emails there that are misclassified, and I'm having
a heck of a time figuring out who it is. Is there any way to find out
who is copying to a public folder?

The SMTP logging on the messages only indicate that the final recipient
before hitting Exchange was to a group. No one from this group is
owning up to it.

Using the Folder Assistant, I've got the folders set up to email me
whenever someone copies a file there, and include a copy of the
message. However, this doesn't show in any way *who* did it.

I've tried setting up also the Folder Assistant to reply (and CC me).
However, this replies to the original sender of the email, *NOT* the
person who is copying the email to the public folder.

Does anyone have any bright ideas?

johnS