[Mailman-Developers] Thinking about list footers

[Murray S. Kucherawy]

Right now list footers are a common feature of Mailman and other MLMs.  The
typical way of doing this is to just append some content, probably after
"--", that indicates the location of archives and maybe some administrative
information (unsubscribe instructions, for example).

What's the expertise on the idea of adding footers in a new MIME text/plain
part rather than just bolting it onto the text as-is?  (Or is that already
done?)  What do MUAs generally do with multipart text/plain bodies?

And along those lines, do any MUAs do useful things with the various List-*
fields, other than permitting one to sort on them?

I'm brainstorming on some possible solutions to DMARC and DKIM matters, and
I don't want to reinvent any wheels.

Thanks,
-MSK