🚀 go-pugleaf

I've grabbed the 'distribute' program (used for munging mail to mailing lists
so the return address will be the list, not the sender) and compiled it, but
mail sent to the test list I've created still has the first header line in the
message as

	Return-Path: <sender>

although the 'Sender:' header line has been properly reset to the name of the
mailing list.  Apparently sendmail is adding the 'Return-Path' header upon
receipt of the mail, because when I use distribute in debug mode the
'Return-Path' header line isn't there.

When I choose to reply to the test message my mailer (elm) apparently uses the
'Return-Path' entry, as it routes it to sender, not test-list.

Any idea what I'm doing wrong?  What is the proper way to set up a mailing
list such that mail sent to the list arrives to users so they can simply
'reply' and have the list address used?  A bonus (which distribute provides)
would be the ability for me to add my own header/footer text to all mailing
list messages.

Thanks for any advice!

Bill