Forefront Online Protection for Exchange (FOPE) can help you simplify the administration of your messaging environments. The hosted online services model requires no hardware or software installation, minimizes up-front investment, and provides a predictable payment schedule through a subscription-based service.
BAs one of the Microsoft® Online Services, Forefront Online Protection for Exchange provides a layer of protection features deployed across a global network of secure data centers. It creates a security-enhanced message stream to and from your on-premises, hosted, or Microsoft® Exchange Online messaging environment.