I am migrating from Exchange2003 to 2010. I have a Barracuda Mail Filter already running and licensed for another two years. My questions are:
What is the real benefit of using an Edge Transport Server Role over a Baraccuda Mail filter?
What is the benefit, if any, of using both at the same time?
Is the Edge Server Role a "must", if one plans to use OWA, and/or Unified messaging?