Dave Crocker wrote: > On 7/16/2014 6:15 PM, Martin Rex wrote: > >> > "Existing deployment of DMARC has demonstrated utility at internet > >> > scale" > > I would propose to adjust this statement to better match reality. > > > DMARC is estimated to cover at least 60% of the world's mailboxes. That's an interesting number, but how was it computed/counted, and what does it mean in reality. When the @yahoo.com reject policy had been set up, I checked whether I could send fake @yahoo.com Email to my private German (F)reeMail account and to my own company email account, and both Emails were properly delivered to my Mailboxes. So even mails "allegedly" From: mailboxes for which the domain owner has published DMARC reject policy will be (properly, due to legal requirement) dysfunctional in non-marginal areas of the internet. The same applies to the DMARC report policy, for which processing by telecommunication providers will also be illegal (a serious criminal offense) in countries with strong protections of fundamental human rights. -Martin