[Mailman-Users] stopping cross posting?

willi uebelherr willi.uebelherr at gmail.com
Tue Oct 11 13:37:49 EDT 2016

Dear friends,

this discussion is mostly negative oriented. I will add a positive

The cross-posting is very important to open the spaces, to connect
different areas.

For the list server is not a big problem. If senders are not
subscribed, they blocked. Simple.

The sender get this information. She/he can check the receiver list
the next time. We can make a short information in the list. Not as
supervision, but as help.

many greetings, willi
Asuncion, Paraguay

2016-10-10 22:56 GMT-03:00 Mark Sapiro <mark at msapiro.net>:
> On 10/10/2016 05:44 PM, Adam Morris wrote:
>> Not sure if I'm using the correct terminology.
> You are.
>> People send messages to a list I run as well as other lists that I have
>> nothing to do with.
>> When people reply to the message sent to other lists the replies go to
>> my list as well as the list they replied to.
> If the person replying does a reply-all and doesn't remove the lists of
> which she is not a member from the recipients.
>> Is there a way to stop this apart from asking people to only send the
>> message to one list at a time?
> Attempting to train your list members is futile[1]. What you can do is
> set Privacy options... -> Recipient filters -> max_num_recipients to 2.
> This will cause any post with 2 or more direct (To: and Cc:) recipients
> to be held and then you can reject those posts. Whether this is more or
> less burdensome than rejecting the non-member replies from the
> cross-posted lists is something only you can decide.
> Also this creates another problem. If, as we strongly recommend, your
> list doesn't munge Reply-To:, and your user's MUAs don't offer a
> reply-list option, they probably want to reply-all to list posts which
> will cause their replies to be held too.
> Bottom line: I feel your pain, but I don't have a satisfactory solution.
> [1] My experience with lists whose members are not email wonks is that
> attempts to alter member's behavior only result in their thinking you're
> a jerk and don't modify their behavior.
> --
> Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
> San Francisco Bay Area, California    better use your sense - B. Dylan
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