Re: [dmarc-ietf] Ticket #55 - Clarify legal and privacy implications of failure reports

Alessandro Vesely <vesely@tana.it> Tue, 22 December 2020 16:51 UTC

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From: Alessandro Vesely <vesely@tana.it>
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Date: Tue, 22 Dec 2020 17:50:58 +0100
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Subject: Re: [dmarc-ietf] Ticket #55 - Clarify legal and privacy implications of failure reports
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On Tue 22/Dec/2020 17:16:05 +0100 Michael Thomas wrote:
> On 12/22/20 1:22 AM, Alessandro Vesely wrote:
>>
>> NEW
>>
>>    Failure reports provide detailed information about the failure of a single
>>    message or a group of similar messages failing for the same reason.  They
>>    are meant to aid extreme cases where a domain owner is unable to detect why
>>    failures reported in aggregate form did occur.  As an extension of other
>>    kinds of failure notifications, these reports can contain either the content
>>    of a failed message or just its header.  The latter characteristic entails
>>    severe privacy concerns.  For that reason, and because it turned out not to
>>    be important, failure reporting is usually disabled.
>>
> I'm not understanding what this "severe privacy concerns" are. It looks like a 
> glorified bounce message to me. My messages pass through the originating domain 
> in the clear, but it only becomes a "severe privacy concern" when it is 
> reflected back? How does that work?


Unlike bounces, you're delivering PII info to a third party.

In Europe, if you setup failure reporting that way, having a third-party 
handling/ processing meta-data or even mail content requires you to inform your 
customers about that, and ask permission.  If third-party is outside EU, since 
privacy shield got canceled last July, there is not even a legal basis anymore 
that would allow you to do so at all.  In all cases, you would be held 
responsible for your customers data unless third-party is signing contracts 
with you to accept EU privacy laws.  EU has severe penalty for companies which 
breaking GDPR.

I cannot tell for Canada or Australia.


Best
Ale
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