On Sat, Nov 06, 1999 at 03:11:53PM +0200, Adam Morrison wrote:

> > Just like MAPS RBL and MAPS ORBS. 
> 
> ORBS is not related to MAPS.

Thanks for the correction.

> >                             You just choose which level of spam
> > protection you want on your mail server. For low risk you can do none
> > or just MAPS RBL, if you want more protection you can use ORBS, and if
> > you're really desparate you also use DUL. You're sending e-mails
> > directly from your dialup-line because *most* hosts aren't desparate
> > enough to use DUL. Some are, though, so you better configure your
> > mailer to use your ISP's mail relay.
> 
> Actually, it's more of a philosophical question; the MAPS RBL only
> lists IP addresses which are associated with `hard' network abusers,
> e.g. bulk friendly ISPs, etc.  So sites choosing to block traffic (or
> SMTP) from IP addresses listed on the RBL know fairly well that they 
> won't lose real email.

Not necessarily true -- bulk friendly ISPs can also have legitimate
customers.

> The DUL lists dynamically assigned IP addresses.  It's supposed to list
> only address blocks which were submitted to MAPS by their owner, but
> that isn't what always happens.  Theoretically, users of the DUL accept
> the fact that they won't receive email from dynamic IP addresses.  But,
> as we've just seen, not all dynamic IP users are spammers.  I think the
> DUL is an inferior solution.  Who says dynamic IP email is bad?  What 
> will happen with IPv6?  I also think that it's wrong to force users to
> use their ISP's mail hub.  (Or worse; invisibly redirect SMTP traffic
> to that host.)

So when everyone and their wristwatch have their own IPv6 addresses we
can stop using it. (For whatever reason.) It's wrong to force users to
use their ISP's mail hubs, but having your mail server crumble under
the load of spam isn't exactly right either, so each administrator
decides on some compromise. I don't use either of these three systems,
but I don't get a lot of spam. For some people it's better even to
reject a legitimate e-mail once in a long while than to be unable to
read it anyway because of all the spam.


-- 
Alex Shnitman                            | http://www.debian.org
[EMAIL PROTECTED], [EMAIL PROTECTED]   +-----------------------  
http://alexsh.hectic.net    UIN 188956    PGP key on web page
       E1 F2 7B 6C A0 31 80 28  63 B8 02 BA 65 C7 8B BA

Recent case studies (the Internet) provide very dramatic evidence ...
that commercial quality can be achieved / exceeded by Open Source projects.
        -- Internal Microsoft memo

PGP signature

Reply via email to