[12303] in North American Network Operators' Group
Re: spam and CIDR blocks
daemon@ATHENA.MIT.EDU (Jon Lewis)
Thu Sep 11 23:08:59 1997
Date: Thu, 11 Sep 1997 23:04:52 -0400 (EDT)
From: Jon Lewis <jlewis@inorganic5.fdt.net>
To: Jared Mauch <jared@puck.nether.net>
cc: jeremiah@wbsnyc6.wbs.com, nanog@merit.edu
In-Reply-To: <199709120208.WAA11969@puck.nether.net>
On Thu, 11 Sep 1997, Jared Mauch wrote:
> > Are there still spammers that don't use "innocent" relays to spread their
> > junk? As long as there are reachable relaying servers somewhere on the
> > net, the spammers have nothing to worry about.
>
> freerelay.cyberpromo.com
Cyberpromo must work both ways then. I've gotten spams recently that
originated at cyberpromo but were relayed through any number of unrelated
sites across the world.
> > How many spam houses have their own CIDR blocks? Not having looked, I'd
> > guess few if any.
>
> Not many.. only the big ones. If you're going to get into denying
Do any really? I'd be amazed if cyberpromo could justify enough IP's to
get a globally routable CIDR block. As was already mentioned, having
large blocks of IP's that are nearly unusable because they are in so many
blacklists should obviously not be a valid "use" of IP space, and should
not be justification for getting more space.
> The problem is that any sort of blacklist maintained by more than
> one person in their spare time gets into very sticky legal issues, and should
Depends on how you maintain, distribute, and talk about it.
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