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

Alessandro Vesely <vesely@tana.it> Wed, 29 July 2020 08:46 UTC

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To: John Levine <johnl@taugh.com>, dmarc@ietf.org
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From: Alessandro Vesely <vesely@tana.it>
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Date: Wed, 29 Jul 2020 10:45:41 +0200
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Subject: Re: [dmarc-ietf] Fwd: New Version Notification for draft-crocker-dmarc-sender-01.txt
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On Tue 28/Jul/2020 19:41:34 +0200 John Levine wrote:
> 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.


You're right.  Outlook was using "on behalf of" even before Marid.[*]  So 
perhaps Sender-ID derived from that usage, rather than the other way around.


Best
Ale
-- 

[*] https://bugzilla.mozilla.org/show_bug.cgi?id=221054

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