> Although outside of the scope of DMARC, this does raise the issue of "how > low do you set the bar on the acceptance of email". This is a local > decision, but it would behoove every email operator to investigate whether > or not they actually accept email that they want to receive that is > malformed per RFC5322.
Based on my experience (not vast, but I used to manage a mail server with 4500 mailboxes), I've never seen a mail server not accept mail with missing message headers. Some, like gmail, may quarantine the message, but they do at least accept it. The reason I point this out is that I'm skeptical that we'll see any sort of widespread implementation of filters that block messages with missing message headers. It would seem that leveraging something like DMARC to handle this case would enable senders to dictate the policy that receivers should implement concerning the senders domain only, as opposed to a blanket policy across all domains. This approach of a sender dictated policy means that receivers can still accept email from a wide variety of senders with varying levels of sophistication. -- Mason _______________________________________________ dmarc-discuss mailing list [email protected] http://www.dmarc.org/mailman/listinfo/dmarc-discuss NOTE: Participating in this list means you agree to the DMARC Note Well terms (http://www.dmarc.org/note_well.html)
