Re: [dmarc-ietf] Tickets 98 and 99 -- fake reports are not a problem and if they were authentication would not help

Michael Thomas <mike@mtcc.com> Mon, 25 January 2021 19:55 UTC

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From: Michael Thomas <mike@mtcc.com>
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Date: Mon, 25 Jan 2021 11:55:35 -0800
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Subject: Re: [dmarc-ietf] Tickets 98 and 99 -- fake reports are not a problem and if they were authentication would not help
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On 1/25/21 11:52 AM, John Levine wrote:
> In article <CAH48ZfwejX1PHO7x1bjJTYyehXZWMuq3jrHFJzAHWfy1jQ+NQg@mail.gmail.com> you write:
>> -=-=-=-=-=-
>>
>> DMARC alignment on the report seems of limited value unless it is aligned
>> to the domain being reported. ...
> I'm getting the impression that some of us have not looked at any DMARC reports.
>
> Aggregate reports contain the domain of the reporter, and the domain
> of the sender to whom they are sending the report. They do NOT have
> the domains to which the messages were sent or where they were
> received, which are often different for forwarded or mailing list mail.
>
> For at least the third time, there is no "domain being reported". When
> I get reports from Google or any other multi-tenant mail provider,
> they do not say to which of their gazillion hosted domains the mail
> was sent. That is not a bug, and it's been like that for a decade.
>
Sounds like a bug to me and an issue should be opened. Just because it's 
a 10 year old bug doesn't mean it's not a bug.

Mike