Retention policies are the recommended methods for implementing messaging records management in Exchange 2013. Retention policies use retention tags to apply settings to mailbox folders and individual items. Retention tags are configured with a retention action that can be taken when an item reaches its retention age limit. In this recipe, you'll learn how to create retention tags and policies in the Exchange Management Shell.
There are three types of retention tags that can be used to apply retention settings to a mailbox through a retention policy. The following steps outline the process of creating custom retention tags based on these types and assigning them to a new retention policy: