RE: Stealth Blocking

[Roeland Meyer <rmeyer () mhsc com>]

> From: Christopher B. Zydel [mailto:czydel () cv net]
> Sent: Wednesday, May 23, 2001 7:01 PM
>
> On Wed, May 23, 2001 at 07:02:45PM -0700, Roeland Meyer wrote:
> > > From: Christopher B. Zydel [mailto:czydel () cv net]
> > > Sent: Wednesday, May 23, 2001 4:03 PM
> >
> > > ISPs that subscribe to MAPS RBL are saying that 
> > > they believe
> > > that open relays should not exist, that MAPS should be able 
> > > to test for this
> > > condition, and that they don't want to receive e-mail from 
> > > non-compliant
> > > hosts.
> >
> > This is the source of confusion... right here. This person 
> does not know the
> > difference between MAPS and ORBS.
>
> Wow, this text was incredibly ambiguous.  


MAPS offers three different lists:

RBL -- the traditional realtime black hole list, of confirmed, unrepentant
     spam sources
DUL -- the list of provider dial ports, as you shouldn't be receiving email
     directly from some other ISP's dial pool in most cases
RSS -- 'relay spam stopper', an open relay list which is much more tightly
     run than ORBS, as RSS requires samples of spam that have come through
     the relay, whereas ORBS actively hunts open relays, whether they are
being
     used for spam or not.

In all cases, proof of spamhood is required. The do not scan for innocent
open relays.