That is correct. With IPv6 coming into implementation this moves the problem from the intractable problem of identifying infected IP addresses, to the tractable problem of identifying good and bad domains and detecting deviation from the norm. It allows you to trash spam that fails basic checking and reduce your primary problem to domain reputation and dealing with compromised accounts on trusted domains. It has never been claimed that it was a silver bullet to rid the world of spam (many snowshoe spammers already pass spf and dkim checks), but it does keep the combat arena out of the swamp.
--adam From: mailop [mailto:mailop-boun...@mailop.org] On Behalf Of Aaron C. de Bruyn Sent: Friday, September 2, 2016 12:36 PM To: Renaud Allard <ren...@allard.it> Cc: mailop@mailop.org Subject: Re: [mailop] Google: Increase in false positives? On Fri, Sep 2, 2016 at 1:39 AM, Renaud Allard via mailop <mailop@mailop.org<mailto:mailop@mailop.org>> wrote: On 09/02/2016 10:28 AM, Brandon Long via mailop wrote: > The spam team would love to send all unauthed mail to the spam label or > even reject it (they call it no auth no entry). > IMHO, that would be a good idea. If one big player does it, no-one can ignore it, so this enables the others to do it. On that note, wouldn't that just 'move the problem'? If we waved our magic wands and made all e-mail require SPF, DKIM, and DMARC or it goes to junk, a mail server compromise would lead to a bunch of spam that was SPF-allowed, DKIM-signed, and DMARC-policy-acceptable. And we'd still have spam in our inbox. ;) -A
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