One of the significant changes introduced in Exchange 2013 was the development of the feature called litigation hold; this was developed that ended up in a feature called in-place hold . Regarding retention policies, there is now support for handling the calendar and tasks folders. One more welcomed feature is that it's possible to archive the contents from Lync into the mailbox. This comes together with a new search engine called FAST, which makes ability the search across platforms available (Exchange, SharePoint, and Lync). It also makes the search faster, which is good from an end user's perspective.
The compliance and audit logging features that were introduced in Exchange 2010 are still present in Exchange 2013. Over the years, many organizations have relied on third-party products for archiving and retaining e-mail messages for legal protection and regulatory compliance. Fortunately, this function is now built into the product, along with some very powerful auditing capabilities...