Messaging records management starts with some of the features found in the Exchange 2000/2003 Mailbox Manager, such as the ability to automatically delete older content found in users' mailboxes, and then extends them further to make Exchange 2007 more friendly in environments that have third-party message archival systems as well as organizations that are required to follow government or organizational regulations.
Managed custom folders allow the administrator to specify folders in each user's mailbox that can be used for organizing and categorizing official or unofficial communications. User participation is a key factor in ensuring that these folders are successful.
The managed content setting feature allows administrators to actually control, move, and delete the content that is found in either the default Exchange folders or the managed custom folders that the administrator has created.