The reason for using Reply-To: is that most of the members just reply
to messages, even when the content of the message states to contact
someone else. Reply-To: takes it out of their hands.
Yes, you might be changing the reply default, however although I have my groups set up to ¡°Reply to Sender¡±, many people do what they have to in order to reply to the group instead.
That said, I agree that your best bet is still to have your group set to ¡°Reply to Sender¡±, and have the person who wants the replies send the message.
What is the protection that a third party Reply-To email address wants the replies?
Why would Groups.io want to enable such a SPAMMING prone tool?
Michael Pavan