As the title suggests, I have a group of users that I want to prevent from sending external emails.
I have created an Office 365 group, and added the required users to it. As administrator, I am the owner of the group, and therefore must be a member.
The problem is that I want the administrator account to be able to send external emails!
I could make one of the users the group owner, but then as owner they could add/remove users, which is obviously a security issue.
What is the best way to get around the problems I have described?