If you look at the spec, there is a strong recommendation to have it this way:
http://tools.ietf.org/html/draft-kucherawy-dmarc-base-04#section-15.4 550 5.7.1 Email rejected per DMARC policy for example.com It should make your internal discussion easier… We found out that putting the word DMARC in the error message, allows bounce processors at ESPs, mailing lists, to understand there is a mailbox there, just not taking that email... Cheers On Jun 20, 2014, at 2:58 AM, John Mears <john_me...@symantec.com> wrote: > Currently we give a generic SMTP error stating that we filtered the email, > without giving reasons, ie a fairly opaque message. Actually this is under > discussion internally. We need to strike a compromise between being > informative to legitimate senders while not revealing the internal workings > of our service to other senders. > > John > > -----Original Message----- > From: Franck Martin [mailto:fmar...@linkedin.com] > Sent: 19 June 2014 17:53 > To: John Mears > Cc: dmarc-discuss@dmarc.org > Subject: Re: [dmarc-discuss] On Inbound DMARC Support > > > On Jun 19, 2014, at 7:14 AM, John Mears via dmarc-discuss > <dmarc-discuss@dmarc.org> wrote: > >> >> I believe there are some announcements expected shortly, and both Symantec >> and Halon are already offering it as a cloud filtering service. (I think I'm >> forgetting another service...) >> >> --Steve. >> >> Indeed, the Symantec hosted email security service now sports a check box >> for enabling DMARC for inbound emails. I wrote the code behind it. We are >> seeing customers gradually enabling it. >> > > What is the SMTP error message when an email is rejected? I'm curious. >
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