On 19 November 2016 at 12:52, David Banes <[email protected]> wrote: > How about following the very large email providers lead and do something like > this; > > https://en.wikipedia.org/wiki/DMARC > https://dmarc.org/2016/02/how-can-i-tell-who-is-using-dmarc/
DMARC prevents spoofing (e.g. spammers sending email from random places, but appearing like it came from legitimate servers). Email trivially allows this by default. XMPP does not have the same problem, and spoofing is not possible, and is not happening in these spam messages. The spam problem comes from spammers registering real accounts on real legitimate servers, many of which do not have adequate measures to restrict or monitor mass account registration. Regards, Matthew
