Messages on this list are often marked as spam.

[A. Schulze]

Am 09.02.2017 um 17:14 schrieb Juri Haberland:
> But it uses MimeDel, presumably to delete the HTML part of some messages
> thus invalidating the DKIM signature...

> X-Mailman-Version: 2.1.17
and it's using an old version. Newer releases fix some points
where Mailman modify messages in subtile ways.

Updating to 2.1.23 is suggested..

Andreas