On 03/02/2018 05:47 PM, Ian Zimmerman wrote:
Flam^H^H^H^H value judgments aside, does DMARC also change the long standing standard of sending rejections to the envelope address?
No, DMARC should not change the principle operation of SMTP, save for additional checks that messages must pass. All other aspects of sending email should be the same.
MTAs should continue to send bounces back to the SMTP envelope address. Though, ideally the MTA would reject the message during SMTP time instead of accepting and bouncing the message.
DMARC does offer the ability to have reports about DMARC failures sent to the domain publishing the DMARC record.
-- Grant. . . . unix || die