[FFmpeg-devel] Patchwork attribution

Timo Rothenpieler timo at rothenpieler.org
Thu Apr 18 12:55:35 EEST 2019

On 18/04/2019 09:49, Gyan wrote:
> Patchwork can incorrectly assign ownership. See 
> https://patchwork.ffmpeg.org/patch/12680/
> The author is Sam John as identified by Message ID as well as the From 
> field in the headers, yet Patchwork attributes this patch to "Oliver 
> Collyer via ffmpeg-devel", a name which appears nowhere in the headers 
> or in the submitted patch. The downloaded mbox patch shows the same 
> wrong attribution. Does anyone know what's going on?
> Gyan
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
> https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> To unsubscribe, visit link above, or email
> ffmpeg-devel-request at ffmpeg.org with subject "unsubscribe".

This happens due to Mailman having to rewrite peoples E-Mail addresses 
if they have strong DKIM/DMARC configured on their sending Domain.
If that is the case, only the server of the actual Domain who owns the 
right private key can send E-Mails under the name of that Domain.

So for mailing lists to be able to send on the messages, they are forced 
to change the sender address.
In the case of this list:
Sam John <samjohn at google.com>
gets translated to.
Sam John via ffmpeg-devel <ffmpeg-devel at ffmpeg.org>

Nothing can be sensibly done about this, cause the alternative would be 
the message getting rejected by the majority of Mailservers.
It's unfortunate that this also messes with the patches. People who are 
affected should probably attach patches instead of using send-email.

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