Virtual Domains and User Routing

[Sebastian Knoop-Troullier]

I have the following setup :

A basic virtual domain. Everything goes to
the .qmail-default apart from a few .qmail-users
that redirects the mail to another server.
I am receiving tons of spam on one of those
.qmail-users. Is there any way to delete messages
that are sent to .qmail-user ???

-S