From: Mike N. 

On Wed, 20 Oct 2004 10:30:08 -0700, jeff  wrote:

>Apparently this is also seen in a _lot_ of YahooGroups/Mail stuff as well.
>Terrific job Microsoft - you've come up with a "feature" that is going
>to make it just that much harder to block executable files in e-mail.

   It's nearly impossible to reliably block executables with Regex.   You
almost have to do a full RFC protocol decode of the mime headers.

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