On Thu, Mar 27, 2014 at 9:21 AM, David Hofstee <da...@mailplus.nl> wrote: > There must be a good reason for people to get of their asses and start > implementing things like DMARC. All the banks (!$%^) I talk to do not have > any reason to implement it swiftly (they turn on p=none and then all progress > stops). Frustrating that they are too lazy to implement a few DNS records. > > It only needs firm backing by 3+ large companies like Hotmail. Give everyone > on IPv6 without DMARC a large spamscore (and publish that beforehand ;-) ). > Give me ammunition and all corporates will move. >
Please no. DMARC is great for 1:1 direct email (from:me, to:you). Anything other than p=none fails miserably once the scope is expanded. Let me give you examples of things that would fail miserably under your suggestion above: 1) This list 2) The recent, heavily forwarded and reflected, Cisco PSIRT notices. NANOG is not the place to debate this, nor is it the place to advocate self inflicted harm. -Jim P.
