Unpacking TNEF/winmail.dat files at mail server

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I have one subcontractor that is just killing me. She is using Outlook,
which in and of itself is a virus factory, but also has Rich Text turned
on, which now sends us important attachments encapsulated in a file
called winmail.dat. Our users are using either Mozilla or Outlook
Express (for those that refuse to listen to me). The OE users are not
seeing the winmail.dat file at all, but the Mozilla users are.

What I would like to do (short of strangling the vendor) is to use
something like the tnefclean perl script on every message that comes in
to fix the damage done by Microsoft and return a message with normal
attachments. Then let Postfix and Kaspersky do their things.

Is this possible? Is there a magic keyword I should be googling on?
Better yet a How-To?

Thx
- --
Kevin Fries
Network Administrator
Hydrologic Consultants, Inc of Colorado
(303) 969-8033 FAX: (303) 969-8357
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