Hello,
What is the difference and/or relationship between configuring Deleted Item Retention on a mailbox or database?
http://technet.microsoft.com/en-us/library/ee364752(v=exchg.141).aspx
And using Retention Tags and Retention Policies?
http://technet.microsoft.com/en-us/library/dd297955(v=exchg.141).aspx
Thanks.