From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/61861 Path: news.gmane.org!not-for-mail From: "Ted Zlatanov" Newsgroups: gmane.discuss,gmane.emacs.gnus.general Subject: Re: User-Agent in spam reporting Date: 6 Feb 2006 14:01:10 -0500 Organization: =?utf-8?B?0KLQtdC+0LTQvtGAINCX0LvQsNGC0LDQvdC+0LI=?= @ Cienfuegos Message-ID: <4npsm0mhvt.fsf@lifelogs.com> References: <874q7gislv.fsf@dod.no> <87d5m03rro.fsf@dod.no> <874q7c3qpw.fsf@dod.no> <87d5lw7i2f.fsf@dod.no> <87zmoi7hg3.fsf@dod.no> <87wtjh947c.fsf@dod.no> <4n1wykxnd0.fsf@lifelogs.com> <87zml7qfly.fsf@blah.pl> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1139252566 21802 80.91.229.2 (6 Feb 2006 19:02:46 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Mon, 6 Feb 2006 19:02:46 +0000 (UTC) Cc: "Ding List" Original-X-From: gmane-discuss-admin@hawk.netfonds.no Mon Feb 06 20:02:43 2006 Return-path: Envelope-to: gd-gmane-discuss@m.gmane.org Original-Received: from hawk.netfonds.no ([80.91.224.246]) by ciao.gmane.org with esmtp (Exim 4.43) id 1F6Bck-0003Zq-MG for gd-gmane-discuss@m.gmane.org; Mon, 06 Feb 2006 20:02:07 +0100 Original-Received: from localhost ([127.0.0.1] helo=hawk.netfonds.no) by hawk.netfonds.no with esmtp (Exim 3.35 #1 (Debian)) id 1F6Bch-0001KF-00; Mon, 06 Feb 2006 20:02:03 +0100 Original-Received: from clifford.bwh.harvard.edu ([134.174.9.41] helo=mail.bwh.harvard.edu) by hawk.netfonds.no with esmtp (Exim 3.35 #1 (Debian)) id 1F6Bbs-0001K6-00 for ; Mon, 06 Feb 2006 20:01:12 +0100 Original-Received: (qmail 3337 invoked from network); 6 Feb 2006 18:54:35 -0000 Envelope-Sender: tzz@lifelogs.com Envelope-Recipients: gmane-discuss@hawk.netfonds.no, ding@gnus.org, Original-Received: from asimov.bwh.harvard.edu (HELO asimov) ([134.174.8.118]) (envelope-sender ) by mail.bwh.harvard.edu (qmail-ldap-1.03) with SMTP for ; 6 Feb 2006 18:54:35 -0000 Mail-Followup-To: gmane-discuss@hawk.netfonds.no, "Ding List" Original-To: gmane-discuss@hawk.netfonds.no X-Face: bd.DQ~'29fIs`T_%O%C\g%6jW)yi[zuz6;d4V0`@y-~$#3P_Ng{@m+e4o<4P'#(_GJQ%TT= D}[Ep*b!\e,fBZ'j_+#"Ps?s2!4H2-Y"sx" X-Hashcash: 1:20:060206:ding@gnus.org::WVewfrYi3x9t9ms2:000016ss X-Hashcash: 1:20:060206:gmane-discuss@hawk.netfonds.no::4AH21S3MZP8k74Pv:00000000000000000000000000000003FzO In-Reply-To: <87zml7qfly.fsf@blah.pl> (Maciej Matysiak's message of "Sat, 04 Feb 2006 16:59:53 +0100") User-Agent: Gnus/5.110004 (No Gnus v0.4) Emacs/22.0.50 (gnu/linux) Original-Sender: gmane-discuss-admin@hawk.netfonds.no Errors-To: gmane-discuss-admin@hawk.netfonds.no X-BeenThere: gmane-discuss@hawk.netfonds.no X-Mailman-Version: 2.0.11 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Xref: news.gmane.org gmane.discuss:9260 gmane.emacs.gnus.general:61861 Archived-At: On 4 Feb 2006, phoner.ding@blah.pl wrote: On the 3rd of February 2006 at 20:18, "Ted Zlatanov" wrote: > >> What do you think about ROT13 of the sender's address? It's fast, >> transparent, and obfuscates enough for any casual snoopers. > > IMHO that's not a good idea. Using ROT13 on e-mail address can result in > another *working* address. Silly example: > abc.se -(rot13)-> nop.fr , both domains exist > abc.it -(rot13)-> nop.vg , both domains exist > ad.pn -(rot13)-> nq.ca , both domains exist > etc. OK, I see. The suffix "R13" could be used to remove all doubt. In other words, even if nop.fr has a valid MX record, it will never get used instead of abc.se, because the Gmane spam report says sender is "vzz@nop.fr.R13". This is nice also because there's no R13 TLD and probably never will be, and if there was it would become E13.R13 ;) Remember, this is just the spam *submitter* and not what's inside the spam message itself, so it's probably not necessary to over-engineer it. Ted