From owner-freebsd-chat Fri Dec 21 19:45:48 2001 Delivered-To: freebsd-chat@freebsd.org Received: from guru.mired.org (okc-65-31-201-166.mmcable.com [65.31.201.166]) by hub.freebsd.org (Postfix) with SMTP id 1A50F37B405 for ; Fri, 21 Dec 2001 19:45:46 -0800 (PST) Received: (qmail 99983 invoked by uid 100); 22 Dec 2001 03:45:45 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <15396.489.261524.154119@guru.mired.org> Date: Fri, 21 Dec 2001 21:45:45 -0600 To: jack Cc: chat@freebsd.org Subject: Re: spam In-Reply-To: <20011221220912.S81018-100000@germanium.xtalwind.net> References: <200112211610.fBLGATc85876@jhs.muc.de> <20011221220912.S81018-100000@germanium.xtalwind.net> X-Mailer: VM 6.90 under 21.1 (patch 14) "Cuyahoga Valley" XEmacs Lucid X-face: "5Mnwy%?j>IIV\)A=):rjWL~NB2aH[}Yq8Z=u~vJ`"(,&SiLvbbz2W`;h9L,Yg`+vb1>RG% *h+%X^n0EZd>TM8_IB;a8F?(Fb"lw'IgCoyM.[Lg#r\ X-Delivery-Agent: TMDA v0.42/Python 2.1.1 (freebsd4) From: "Mike Meyer" Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org jack types: > Moved from current. > Today Julian Stacey wrote: > > PS Maybe if we were to regularly automatically scramble all email addresses > > in our web searchable mail archives ? just inserting ._ErAsE_ThIs_. in every > > email address would protect us from easy harvesting by simple spammer robots. Well, all my email addresses in the archives (starting last week) expire after five days. Mail to the address that predates that arrangement will get the same treatment as expired addresses - a reply asking that the sender confirm that it isn't spam. Since most spam doesn't have a valid return address, I never see it. > Spammers don't care if the addresses are valid. The `dictionary > attacks' are the killers, from an ISP's POV. Day after day it is > a constant flood of: > al1@dom.ain > al2@dom.ain > ... > al10@dom.ain > alvin1@dom.ain > alvin2@dom.ain > ... > zelda1@dom.ain > > mail# grep "User unknown" /var/log/maillog | wc -l > 138872 > > That's in 22 hours and 14 minutes. We have just over 3,300 > active email accounts. The question in this case is whether that's spam or a DoS attack disguised as spam? http://www.mired.org/home/mwm/ Independent WWW/Perforce/FreeBSD/Unix consultant, email for more information. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message