Am 17.09.2012 22:09, schrieb Michael Tremer:
> I had a look at an older email, which had these headers...
> 
> Restarted mailman and disabled -> enabled the RFC 2369 option.
> 
> Let's see...

I don't see it :-)

As mentioned: I can filter for other header-info.

AFAI know mailman is capable to provide that info, as I use it for many
other lists.

Stefan