On Mon, 25 Nov 2019 20:22:04 -0800, Rick wrote in message
<20191126042203.GF6045@???>:

> Quoting Steve Litt (slitt@???):
>
> > I know digest mode is handy, but please be careful in your handling
> > thereof. I have no idea who dng-request@??? is, but *I*
> > wrote the preceding, and my email is slitt@???.
> > Also, please take the extra second to copy the correct subject line
> > to your response.
>
> This happens _all the time_ with digest mode, and (intending no
> offence to Alexander) in my experience you cannot get its users to
> manually fix attributions or Subject headers.
>
> Digest mode also completely bollixes threading in the archives (see:
> https://lists.dyne.org/lurker/list/dng.en.html) _and_ elsewhere. For
> this reason, I've given serious consideration to just
> blanket-disabling digest mode on every Mailman installation I
> administer, and just let the two or three users of that mode curse me
> as long as they feel is therapeutic.

..anotherway is point them to 'info formail'  
and make them pick one of:
EXAMPLES
       To split up a digest one usually uses:
              formail +1 -ds >>the_mailbox_of_your_choice
       or
              formail +1 -ds procmail

--
..med vennlig hilsen = with Kind Regards from Arnt Karlsen
...with a number of polar bear hunters in his ancestry...
Scenarios always come in sets of three:
best case, worst case, and just in case.