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2006-04
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Date: Wed, 19 Apr 2006 12:30:38 +0930
From: David Newall To: aussie-isp, aussie-isp Message-Id: <4445A7D6.3080901@rebel.net.au> In-Reply-To: <20060418224557.GA12751@taz.net.au> References: <1145343275.5563.15.camel@localhost.localdomain> <003701c662cf$4f91b7e0$2522630a@t22> <20060418224557.GA12751@taz.net.au> Subject: Re: [Oz-ISP] SPF Records |
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This is a multi-part message in MIME format. --------------010007030309000402010507 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Craig Sanders wrote: > On Tue, Apr 18, 2006 at 08:03:14PM +1000, Sean Winn wrote: > >> Value of SPF? Very little except for being feel-good about forged email. >> Spammers can use SPF as well, with throw-away domains, and probably do. >> > > that's not surprising because *SPF IS NOT AN ANTI-SPAM TOOL*. > > SPF HAS *ABSOLUTELY NOTHING* TO DO WITH PREVENTING SPAM. > > SPF'S sole purpose is to allow a domain owner to specify which hosts are > allowed to send mail claiming to be from their domain. i.e. it is an > anti-forgery tool. I think the way to use it is to publish records for your own domain, and honor records published by others. At some stage you will require others to publish their records in order to accept email from them, but until then, no record means no restriction. --------------010007030309000402010507 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#ffffff" text="#000000"> Craig Sanders wrote: <blockquote c i t e = " m i d 2 0 0 6 0 4 1 8 2 2 4 5 5 7 . G A 1 2 7 5 1 @ t a z . n e t . a u type="cite"> <pre wrap="">On Tue, Apr 18, 2006 at 08:03:14PM +1000, Sean Winn wrote: </pre> <blockquote type="cite"> <pre wrap="">Value of SPF? Very little except for being feel-good about forged email. Spammers can use SPF as well, with throw-away domains, and probably do. </pre> </blockquote> <pre wrap=""><!----> that's not surprising because *SPF IS NOT AN ANTI-SPAM TOOL*. SPF HAS *ABSOLUTELY NOTHING* TO DO WITH PREVENTING SPAM. SPF'S sole purpose is to allow a domain owner to specify which hosts are allowed to send mail claiming to be from their domain. i.e. it is an anti-forgery tool.</pre> </blockquote> I think the way to use it is to publish records for your own domain, and honor records published by others. At some stage you will require others to publish their records in order to accept email from them, but until then, no record means no restriction.<br> </body> </html> --------------010007030309000402010507-- ---- email "unsubscribe aussie-isp" to m a j o r d o m o @ a u s s i e . n e t to be removed. |
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