How do I change settings so only members can post?

Question

My group is 'restricted' so that all new memberships must be approved by me. However we are getting several nuisance posts every day from non-members. How do I alter the settings so that only approved members can post to the group?

Answer 1

management- under group settings click messages- Posting and Archives (Edit) <-- click the edit- 1st column Who can post- check members- click save changes