> On 2019-10-22 23:20, Steve Litt wrote:
> >On Mon, 14 Oct 2019 11:44:11 -0500
> >golinux@??? wrote:
> >
>
> This email does not address the content of this email but rather something
> very strange that came through in the header:
>
> https://dev1galaxy.org/files/cruft.png


So if I am understanding this correctly, you are referring to the headers below:

> X-Mailman-Version: 2.1.23
> Precedence: list
> List-Id: "The first mailinglist after debianfork.org" <dng.lists.dyne.org>
> List-Unsubscribe:
> <https://mailinglists.dyne.org/cgi-bin/mailman/options/dng>,
>     <mailto:dng-request@lists.dyne.org?subject=unsubscribe>
> List-Archive: <https://mailinglists.dyne.org/cgi-bin/mailman/private/dng/>
> List-Post: <mailto:dng@lists.dyne.org>
> List-Help: <mailto:dng-request@lists.dyne.org?subject=help>
> List-Subscribe:
> <https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng>,
>     <mailto:dng-request@lists.dyne.org?subject=subscribe>
> Errors-To: dng-bounces@???
> Sender: "Dng" <dng-bounces@???>

Mailman (the software managing this mailing list) has been adding these headers to
outgoing mail for many years. I think these where added because many people
complained that they didn't know how to unsubscribe from mailing lists.

I suspect what has happened is that you updated your mail client, and it now
parses these headers and helpfully shows them to you, just in case you
want to unsubscribe ? Maybe check the change notes for the mail client ?

Let me know if I have misunderstood your question...

regards

marc