We are installing a Exchange 2013 server in a coexistence sceanrio with E2010. The E2010 server will later be removed.
We use Forefront Protection for Exchange on the legacy server and are looking into SPAM and Administration of this on the new Exchange 2013 server.
Do we need EOP in addition to ensure a normal secure anti SPAM filter?
Is EOP optimal for our on premises server? EOP Standalone uses Cloud services, right? Do we need to register multiple mailboxes in the cloud to make this work or is the service a single entry point for Our Mail-organization?
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