problems sending to the list

Peter Lebbing peter at
Sun Feb 11 12:56:40 CET 2018

On 11/02/18 09:29, Matthias Apitz wrote:
> ----- Forwarded message from Mail Delivery System <Mailer-Daemon at> -----
> Date: Fri, 09 Feb 2018 11:14:13 +0100
> From: Mail Delivery System <Mailer-Daemon at>
> To: ftp51246-2575596 at

I think you're not setting the "envelope from" correctly. While the
e-mail itself has your normal e-mail address, the bounce is going to the
address I quoted above, so apparently that is the envelope sender.

E-mail delivery works with the addresses in the envelope, and actually
the "From:" in the headers of the mail are not related to that. It would
appear that your ISP's server ends up delivering the mail somewhat like

MAIL FROM:<ftp51246-2575596 at>
RCPT TO:<gnupg-users at>
From: Matthias Apitz <guru at>

That envelope sender is causing problems further down the road, leading
to a bounce.

If you tell me off-list what MUA you're using to send the mail I might
be able to help configure it correctly.



I use the GNU Privacy Guard (GnuPG) in combination with Enigmail.
You can send me encrypted mail if you want some privacy.
My key is available at <>

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