The use of foreground network calls has been eliminated to ensure that Outlook stays responsive on unreliable networks. The RPC-based sync has been replaced with a new Internet-friendly MAPI-HTTP protocol that supports Exchange/Outlook connectivity. End users will see policy tips or sharing restrictions when the apps detect a potential policy violation. IT admins can thus centrally create, manage, and enforce polices for content authoring and document sharing. Data Loss Protection (DLP) - In addition to Exchange, Outlook, OneDrive for Business, and SharePoint, DLP is now coming to Word, Excel, and PowerPoint.Since this is a business preview, the company instead offered a brief summary of the improvements meant for IT pros and developers: Microsoft didn’t detail its end-user enhancements planned for this release (that will happen “at a later date”). Microsoft today is expanding the program to its commercial Office 365 customers, specifically targeting IT pros and developers interested in testing the upcoming release. Office 2016 for Windows has been in private preview for several months, though anyone could request access if they were so inclined.
