Some one proposed this:
> change ur filter to this :)
> # Exim filter
> if $reply_address contains "@spam.site" and
> $reply_address does not contain "postmaster@"
> then
> fail "550 User unknown"
> endif
but what if the message is being relayed [for example by a
secondary MX] and the MTA cache the 550 reply, so no relaying
further, legitimate, addresses to that address ?
Leonardo Boselli
Firenze
http://freedom.dicea.unifi.it/~leo/toscana