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Re: [dmarc-ietf] Fwd: New Version Notification for draft-crocker-dmarc-sender-01.txt

John Levine <johnl@taugh.com> Tue, 28 July 2020 17:41 UTC

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From: John Levine <johnl@taugh.com>
To: dmarc@ietf.org
Cc: vesely@tana.it
In-Reply-To: <d034aac6-e50c-8e6b-16f1-8c41e711b837@tana.it>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/dmarc/_D-IVgUspWX6CtgPS0yD5r3rDoc>
Subject: Re: [dmarc-ietf] Fwd: New Version Notification for draft-crocker-dmarc-sender-01.txt
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In article <d034aac6-e50c-8e6b-16f1-8c41e711b837@tana.it> you write:
>In the pre-DMARC era, we've been mainly using just From:.  Sender: is used by 
>Outlook to display "on behalf of" catchphrase, presumably in an attempt to 
>support the historic Sender-Id protocol. 

Sorry, no. That is completely wrong. The Sender field has been part of
e-mail since RFC 724 in 1977. The now-dead Sender-ID didn't come along
until the 2000s. Outlook's annoying "on behalf of" at least matches the
intention of the Sender field.

This might be a good time to read up on mail history rather than guessing.

R's,
John

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