If memory serves correctly, you can setup an entry in your aliases files
like the following:

*: myspamuser at somewhere.com

If you stick this at the end it should send anything not handled by
another alias to myspambox at somewhere.com (this could go to another user
as well).  

You may have to change the aliases director to use lsearch* rather than
lsearch.  I can't remember off hand.

Hope this gets you heading in the right direction.

Dave

On Mon, 2002-06-10 at 21:09, Scott Raun wrote:
> I want to set things up so that fireopal.org considers any
> "{string}@fireopal.org" as a valid e-mail address - if there is not an
> existing explicit account to match {string}, toss them somewhere to be
> looked at later.
> 
> I'm running Debian and exim - any hints?
>