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Re: [dmarc-ietf] DMARC alignment conflicts with RFC 5322 on the use of the From and Sender header fields

Dave Crocker <dcrocker@gmail.com> Tue, 02 June 2020 22:28 UTC

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To: Seth Blank <seth@valimail.com>, "dmarc@ietf.org" <dmarc@ietf.org>
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From: Dave Crocker <dcrocker@gmail.com>
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Date: Tue, 02 Jun 2020 15:28:50 -0700
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Subject: Re: [dmarc-ietf] DMARC alignment conflicts with RFC 5322 on the use of the From and Sender header fields
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On 6/2/2020 2:42 PM, Seth Blank wrote:
> Also, from literally today: 
> https://www.justice.gov/usao-sdtx/pr/man-admits-spoof-email-fraud-scheme-and-more


Oh my. Is it really that difficult to understand the difference between 
choosing to take an action, versus being affected by your taking that 
action.


Let's keep this simple:

1. Most users do not see the domain name in the From: field.  So how 
could using a cousin domain or any other misbehavior with the domain 
name, cause the recipient to be tricked?

2. Nothing in that article demonstrates that a recipient was tricked 
into misbehavior by the presence of a problematic From: field domain name.

d/

-- 
Dave Crocker
Brandenburg InternetWorking
bbiw.net

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