How to create a list that only one user can send messages to this list

Hi all,

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.

For example:
The members of users@domain.com list are:

user1@domain.com
user2@domain.com
user3@domain.com
user(N)@domain.com

I want to do only user1@domain.com can send emails to users@domain.com list, nobody else can send emails to that list, the members list except user1@domain.com can not send emails to that list.

Is it possible?

Thank you so much

This wiki article should do what you want.