From owner-freebsd-questions Tue Aug 6 17:36:57 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 93A5537B400 for ; Tue, 6 Aug 2002 17:36:52 -0700 (PDT) Received: from m-net.arbornet.org (m-net.arbornet.org [209.142.209.161]) by mx1.FreeBSD.org (Postfix) with ESMTP id EEB8E43E65 for ; Tue, 6 Aug 2002 17:36:51 -0700 (PDT) (envelope-from alganesh@m-net.arbornet.org) Received: from m-net.arbornet.org (localhost [127.0.0.1]) by m-net.arbornet.org (8.12.3/8.11.2) with ESMTP id g770YDai052570; Tue, 6 Aug 2002 20:37:15 -0400 (EDT) (envelope-from alganesh@m-net.arbornet.org) Received: from localhost (alganesh@localhost) by m-net.arbornet.org (8.12.3/8.12.3/Submit) with ESMTP id g76GVl82044402; Tue, 6 Aug 2002 12:31:47 -0400 (EDT) Date: Tue, 6 Aug 2002 12:31:46 -0400 (EDT) From: Ganesh Kumar To: Ken McGlothlen Cc: freebsd-questions@FreeBSD.ORG Subject: Re: I KINDLY NEED YOUR ASSISTANCE In-Reply-To: <86n0s12mgo.fsf@ralf.artlogix.com> Message-ID: <20020806122816.X43080-100000@m-net.arbornet.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Thats a good suggestion Ken :) But the problem is with "communication".When I was taking care of mail servers,we got spam(and email bombs too) from a particular webhost.But making the admin understand our problem was a pain for me ! (bcos,it originated from taiwan ) If someone can block the legitimate spams to the list (from freebsd group) atleast and prevent mails from that address alone,would save us :) cheers Ganesh Kumar On 5 Aug 2002, Ken McGlothlen wrote: > Ganesh Kumar writes: > > | Can anyone give suitable suggestions for stopping [spam]? > > Mail filters generate too many false positives, don't screen out all the spam, > and still permit the traffic to occupy your network. > > The spam isn't the problem---the ISPs who operate open relays or who permit > spammers to stay on their networks are. The only viable solution I've found is > to block the spammers at the connection level. > > Since midnight, August 1, I've blocked 82 spams. 50 of those were spam > attempts from South Korea, 8 from China, 3 from quixnet.net, one from ttd.es, > one from t-dialin.net, and the other 18 were blocked by spamcop.net's blackhole > service. > > My bounce messages (the ones that are blocked by my list rather than external > blackhole lists) include a sneakemail.com contact address, so that anyone > trying to send legitimate email can still contact me---but I can deactivate > that address quickly if someone tries to use it for spamming. > > That's 82 spams that never made it onto my network in 4.5 days, with no false > positives. Pretty cool. > > Of course, my little collection of domains aren't well-trafficked, like > freebsd.org, so they probably couldn't afford to be as draconian as I've been. > I've blocked some major ISPs in other countries that just couldn't get their > crap together (wanadoo.fr, for example), and then some countries were just such > humongous sources of spam that I started blocking them entirely. > > If I do get a responsible admin (it's happened---once) writing me over the > sneakemail.com address, and I'm satisfied they're sincere and responsive, I > unblock their net. > > The only way I can see that will actually stop spam is if enough people block > spam at the connection level that ISPs are forced to clean up their act. I do > wish the FreeBSD people would do so on their mailing lists, which are popular > enough that it would surely create customer pressure on the offending ISPs. > > But I'm not in charge of that. :) > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message