catch-all in /etc/aliases

[James Cummings <cummings.james@gmail.com>]

Hi there, 

I'm using debian unstable and exim4 and forwarding a bunch of 
mail on for another system using /etc/aliases

Firstname.Lastname: Firstname.Lastname@other.system.com
Firstname1.Lastname1: Firstname1.Lastname1@other.system.com
etc.

Is there a way to put a catch-all address in so that any 
mail I've not explicitly matched can be sent to  foo@another.system.com  ?

I've tried just putting *: foo@another.system.com  and 
doing @first.system.com :  foo@another.system.com
but that doesn't seem to work.

Any other suggestions?

-James