[Solved] How to create a list that only one user can send messages to this list
I have a requirement, my boss told me that he needs a list of emails where only one user from the list can send emails to that list.
The members of email@example.com list are:
I want to do only firstname.lastname@example.org can send emails to email@example.com list, nobody else can send emails to that list, the members list except firstname.lastname@example.org can not send emails to that list.
Is it possible?
Thank you so much