Re: [exim] Heads up?

> John Palmer wrote:
> >>
> > Challenge-response systems (such as TMDA) are the reason that
> > our spam load has been cut down by 95%. I highly recommend systems
> > like this.
> >
> > If the sender gets one of these "challenge" messages, he just needs to
> > let the recipient know "hey -put me on your whitelist".
> >
> > Works like a charm.
>
> Do the words "collateral spam" mean nothing to you?
>
> - Marc
>

There is no "collateral spam" in most cases since the e-mail addresses
on the original spam are bogus and never make it out of our system.
Either bogus domains in which MX records dont exist or bogus usernames
that the MTA for the domain in question rejects.