Retention policy and legal hold

Hi Vasil,

Thanks for your reply.  Actually I also read the article you mentioned.  From this article, if I haven't misunderstood, retention policy can do the same thing in-place hold or legal hold did.  (As under the header "Use a retention policy instead of these features").  But still, I heard many other people say that "retention policy is different from legal hold".  So I really wish to clarify if the "retention policy" in SCC can already archive the same function as legal hold, and is there still any need for us to set legal hold if we already set retention policy to preserve all emails for 7 years.