what rule triggers this

[Robin M.]

On Thu, 15 Jan 2004, Mike Kercher wrote:
>
> > What rule is it that triggers this message.
> >
> > If you are using Microsoft Outlook, we strongly recommend you change
> > your outgoing message format from "Rich Text" to "HTML" or "Plain
> > Text".
>
>
> Sender Error Report

but how can I prevent this check from happening. The thing is that alot of
exchange users will need to send Rich Text email.