Recently we moved across a user and a distribution list from Exchange 2003 to 2010. The user used to be able to add and remove from a distribution list within Outlook.
I have added them to the Managed by list in Exchange in the distribution list, but to no avail. They are getting an error message saying You do not have the sufficient permissions to perform this operation on this object.
I cannot seem to find the setting to allow the user permissions.
Best Answer
There appears to have been some changes to the way that user managed distribution lists are handled. To fix it requires assigning the MyDistributionGroups RBAC role to the Default Role Assignment Policy. The Technet script center has a script that should help you resolve this. A blog article describing the issue and resolution via the script is here.