Several of my customers require preservation of distribution group membership at the time a message was sent/received to meet their compliance requirements. This feature is currently not supported by the In-Place Hold and Litigation Hold features in Exchange 2013 and requires journaling. Journaling however is not an "In-Place" function since it creates multiple copies of messages and increases storage requirements. To help my customers not need the combination of journaling plus a third-party archiving tool I would like to see In-Place support for preserving DL membership. Will this become available in future CU's or a service pack?