Taking from the previous case:
I realize you can enable the exchange server to allow the client(outlook 2007) to autoforward to an external email address. By doing the following: ESM, Global Settings, Internet Message Formats. Right click on the Default and choose Properties. Choose the tab "Advanced" and then select the options as required. Apply/OK out.
Another method is to forward to an email enabled user in AD...of which I'd rather not do bcz I'd prefer to use rules.
As for the first method--the exchange side...Is there any way to limit who has rights to do that? Or is it an all or nothing?