Both summarizing previous comments and testing this myself:
1) I hit "Reply All", and
2) I hit Options > Format > Plain Text Only (using Thunderbird)
Hopefully, this will do it. (If you don't get this let me know.)
AndyB
Sandy Olson wrote:
> It's always gone back to sender when 'reply' is hit; to the list when
> 'reply to all' is hit...at least on my computer for years and years!
>
> SandyO
> CH #1146