On Thu, Jul 16, 2020 at 01:24 PM, Bruce Bowman wrote:
So if he clicked on "reply to group" (instead of using the reply function of his email client) this would happen.
It could be that he simply hit his mail program's "reply to all" button (not any of the links provided by groups.io).? Either out of habit, or thinking that it was a private conversation and wanting to include anyone else in the "private" loop.
The underlying problem is that messages from groups.io are sent with headers which make MUAs (mail readers) "help" by including the group-post address in their built-in "reply to all" function. ? This happens EVEN IF the group is configured to only offer "Reply to Sender" and "No Other Options", so there is no "reply to group" link provided by groups.io in the message.
There's an open bug in beta.groups.io about this.? Mark tried removing some headers which seemed likely to be causing this, but that didn't work.