On Mar 17, 2015, at 1:20 AM, David Hofstee <[email protected]> wrote:
> And that is why the big inbox providers should not allow email over IPv6 > without DMARC. Then domain reputation can be used reliably. > DMARC is a specific tool, not really for all to use… but enforcing SPF or DKIM over IPv6 is what we need: http://engineering.linkedin.com/email/sending-and-receiving-emails-over-ipv6 http://www.slideshare.net/FranckMartin/linkedin-smtpi-pv6 https://support.google.com/mail/answer/81126?hl=en#authentication http://blogs.msdn.com/b/tzink/archive/2014/10/28/support-for-anonymous-inbound-email-over-ipv6-in-office-365.aspx http://www.m3aawg.org/sites/maawg/files/news/M3AAWG_Inbound_IPv6_Policy_Issues-2014-09.pdf And oh, use things like spamhaus DBL, SURBL and NOD (URIBL?) to block the domains you find in SPF/DKIM/RFC5321.mailfrom/RFC5322.From/...
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