[Mimedefang] How do you block all outgowing spam?

[Kevin A. McGrail]

> I am trying to find a way to drop all outgoing mail that gets marked as
> spam while still passing along incomming mail. I realize that I can do
> something like this:
>
> if ( $Sender=~/\@domain.com/ ) {
> action_quarantine_entire_message();
> action_discard();
> }
>
> underneath the section that begins with:
> if ($hits >= $req) {
>
> But what do I do if I have outgoing mail from many different domains?

How are people authenticating to send email?  You can almost always trigger
on that information.

Regards,
KAM