Hello all

Running Exchange 2013 Ru8, all users are running Outlook 2013. I have granted the necessary RBAC permissions that allow users to modify membership of distribution groups and mail enabled security groups that the user owns. However i notice that users who try and modify a mail enabled security group using the outlook client get permission denied error message. However if the same user uses ECP they are able to modify the mail enabled security group. If the user can modify the group using ECP, this tells me that the RBAC permissions are correct. What could be causing the outlook client to fail?

Tha

Hi,

If you can manage mail enabled security group using ECP, then the permission is set well. The issue should be related to Outlook side, I recommend you use Outlook safe mode to determine whether the issue is related to add-ins. If the issue persists, you can create a new profile and check the result.

Hope this can be helpful to you.

Best regards,

Hi ,

What happens in owa ?

Please have your outlook client in online mode and clear the auto complete cache then select the distribution list from GAL and then try to add or remove members from the distribution list.