Date: Tue, 6 Aug 2002 12:31:46 -0400 (EDT) From: Ganesh Kumar <alganesh@m-net.arbornet.org> To: Ken McGlothlen <mcglk@artlogix.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: I KINDLY NEED YOUR ASSISTANCE Message-ID: <20020806122816.X43080-100000@m-net.arbornet.org> In-Reply-To: <86n0s12mgo.fsf@ralf.artlogix.com>
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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 <alganesh@m-net.arbornet.org> 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
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