Exchange Online Protection is the built-in cloud-based email filtering service for Exchange Online and Office 365 that helps protect users from unwanted spam and malware. EOP is tightly integrated with Exchange Online and will allow users to easily manage what emails do or do not get delivered to them. The current offering, Sophos Portal, is an on-premise solution that adds additional routing time for messages and could become a potential bottleneck to delivery in certain situations. EOP will offer higher availability and faster delivery than the current solution.