Unpacking TNEF/winmail.dat files at mail server

[Kevin Fries]

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
[phone] FAX: [phone]

[Robin Lynn Frank]

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Post by Kevin Fries
=20
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.
=20

It occurs to me that the party causing the problem ought to be the one
who fixes it. I assume this subcontractor makes money from their
dealings with you. Are you in a position to
(ask|plead|suggest|tell|demand) that mail sent to your company be plain
text? Granted, since she is a Windows user, she may know nothing about
changing the settings for Outlook, so you might have to explain how it
is done.

Post by Kevin Fries
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.
=20
Is this possible? Is there a magic keyword I should be googling on?
Better yet a How-To?
=20

We use amavisd-new to quarantine anything with a TNEF attachment, so I
am not familiar with the script you refer to. I do have one question,
though. Can't Kaspersky scan TNEF?
--=20
Robin Lynn Frank - Director of Operations
Paradigm-Omega, LLC - http://paradigm-omega.com
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SpamTrap: ***@null-route.merseine.nu
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We support boycotting overseas outsourcers.

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[Steve Crawford]

Post by Kevin Fries
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.

Tell her to turn it off. I've found that most people are unaware that
their emails are unreadable and are happy to check a box that fixes
the problem.

A program that you may find useful (though you may need to wrap it in
a script or something if you are just looking to run your mail
through a fix filter) is ripmime. If you pipe mail to it it will
extract all the attachments including those in tnef format.

Cheers,
Steve