So the Wikipedia article basically suggests there are many variants.
Interesting. It's been my experience that almost all mail systems honor
the bounces-to (which *sometimes* is based off the From or Reply-To
unless the field bounces-to is set in the headers, it seems.)
Notice the samples below which prove out my point in that regard:
Return-path: <EverydayFood@???>
Envelope-to: loot@???
From: "Everyday Food - MarthaStewart.com"
<EverydayFood@???>
To: "loot@???" <loot@???>
Reply-To: support@???
Return-path: <barney@???>
Envelope-to: loot@???
From: Stan <stan@???>
Bounces-To: barney@???
On 06/28/2016 05:03 PM, Heiko Schlittermann wrote:
> Chip <jeffschips@???> (Di 28 Jun 2016 21:59:35 CEST):
>> My mistake NOT "bounces-to" rather "return-path" as in the following snippet
>> of campaign emails from Home Depot, Martha Stewart and Sears:
> Maybe this helps.
>
> https://en.wikipedia.org/wiki/Bounce_address
>
> And reading the above article I just learned that my terminology
> was wrong too, 'envelope from' I meant where I used 'envelope sender'.
>
>
>
