[Mailman-Users] Reply-to options not working

[Jordan Brown]

[ Feh.  My biggest MUA<->ML nuisance is that I don't have a way to force
replies to use the custom From address that I use for that mailing
list.  Grant, sorry for the dup. ]

On 1/30/2018 3:42 PM, Grant Taylor via Mailman-Users wrote:
> On 01/30/2018 03:11 PM, Jordan Brown wrote:
>> There are those who would consider it a problem if your mailing list
>> is (mis:-)configured to add "Reply-To: <list>" if there is no
>> existing "Reply-To".
>
> I don't see how the MLM's behavior (good / bad / indifferent) has
> anything to do with this being a problem.  Specifically that the
> sample message has the Reply-To: set to the same value as the From:.

If your Mailman is configured so:

    Should any existing Reply-To: header found in the original message
    be stripped? If so, this will be done regardless of whether an
    explict Reply-To: header is added by Mailman or not. 
    (Edit *first_strip_reply_to*)
    <http://troop92bsa.org/mailman/admin/parents_troop92bsa.org/?VARHELP=general/first_strip_reply_to>
    	
    No 	Yes

    Where are replies to list messages
    directed? Poster is /strongly/ recommended for most mailing lists. 
    (Details for *reply_goes_to_list*)
    <http://troop92bsa.org/mailman/admin/parents_troop92bsa.org/?VARHELP=general/reply_goes_to_list>
    	
    Poster 	This list 	Explicit address

(that is, first_strip_reply_to=No, reply_goes_to_list=This List)

Then if user A sends a message to the list without a Reply-To, replies
will go to the list, but if user B sends a message to the list with
"Reply-To: <user-B>" replies will go to user B.

Some people would regard it as a problem that the replies to user B
aren't directed towards the list.

As you say, setting Reply-To to the same as From should have no effect,
but that's not the case in this configuration.  (Nor is it the case for
Stephen's proposed "smart single reply", at the MUA end; in his proposal
an explicit Reply-To beats List-Post beats From.)

(I would regard it as a problem that replies to user A *are* directed
toward the list, but we're not talking about my preferences here; I'm
just trying to explain why some people have a problem with a message
that has Reply-To the same as From.)