Could you add an RFC-2919 List-Id header [1]? For mlmmj, it looks like you just need to add a line like:
List-Id: Darktable Development <darktable-dev.darktable.org>
to the control/customheaders file. It doesn't need to be specifically
that, just something reasonably likely to be unique, and preferably not
the same as the old list's List-Id. Many readers' mailing-list
functionality uses this field.
[1] https://www.ietf.org/rfc/rfc2919.txt
signature.asc
Description: This is a digitally signed message part.
