You want to have mailbox properties and distribution lists managed by representatives of the departments, the help desk, or sub-administrators. No administrative rights on the Exchange Server should be required. You have the following requirements:
- Manage mailbox properties such as absence management, mail retrieval, mail format, etc.
- Manage distribution lists
- Secure delegation of these tasks to the help desk or representatives of the department
- Only for assigned mailboxes or users from Active Directory
- No administrative rights to Exchange Server required