Members can't remove themselves from security groups. Please set the group to Closed for requests to leave

Members can't remove themselves from security groups. Please set the group to Closed for requests to leave

Answer:-if you try to modify the group membership or if you want to change any specific on particular distribution group the above error will appear.

In my case I have universal distribution group the user want to restrict that group for internal communication for this we need to enable ‘internal authentication required’ option in mailflow settings in group properties when I click this option getting error

“Members can’t remove themselves from security groups, please set the group to closed for requests to leave”

Execute the below shell command the above error disappears and then you can modify the group settings

Set-Distributiongroup –identity <DistributionGroupName> –MemberDepartRestriction Closed