[Nut-upsuser] Keeping the traffis on or off the list ?

[Greg Troxel]

Reply-To: is about the *author*.  On a list, people should "reply all"
and include the list, generally, unless they intend to send a private
reply.  Having Reply-To set to the list violates standards and causes
the "reply" MUA action to send a reply to other than the author,
violating expectations.

> From: Roger Price via Nut-upsuser <nut-upsuser at alioth-lists.debian.net>

There's more broken: the list changes the subject and adds a footer,
breaking DKIM, and to work around that changes From: to the list.  This
also means the reply MUA sends an intended-private reply to the list.
So all of that should be deconfigured, with the list passing messages
unmodified except for List-Foo headers.

The Reply-To: you are seeing is a workaround for forging From, which is
a workaround for modifying the message.  Really, the solution is to just
stop all of this.  NetBSD lists have zero of it and there is no trouble.