Dmitry Alexandrov wrote:
> > > > came with bad GPG signatures
>
> | X-Content-Filtered-By: Mailman/MimeDel 2.1.21
>
> The name itself suggests that this thing is supposed to mangle MIME
> messages by design, so it is not surprising, that their integrity is
> broken.  I cannot imagine a single valid reason to mangle mail that
> is passing through a list, whether MIME or legacy, though.

The libreplanet-discuss mailing list adds a subject tag
"[libreplanet-discuss] " and a footer saying:

  libreplanet-discuss mailing list
  libreplanet-discuss@libreplanet.org
  https://lists.libreplanet.org/mailman/listinfo/libreplanet-discuss

Personally I dislike these and would love to see them removed from all
mailing lists.  However they have been in use for a long time and many
people (pedantically incorrectly) use the subject tag for mail
filtering and many people need to see the footer to remind them how to
unsubscribe from the list.

Fortunately adding these will not cause a properly signed message to
fail signature validation.

Bob