Hi, I am going to be installing E3K into our existing E2K environment, and I want to keep the E2K server as the (for lack of a better word) primary exchange server. I don't want the E3K to take over the system. At least not yet. I have looked for anything that would allow this to happen, but haven't found any documents to show that the E3K would take over. BTW.... we have to do this on a live system (not by choice, or my choice) Can anyone let me know if I should have any worries? Thanks Ken