AD Site E2003 Routing Group E2003 Bridgehead E2003 Back-End E2010 HUB E2010 MBX E2007 HUB E2007 MBX E2010 EdgeE2007 Edge Upgrade existing E2003 and E2007 servers to SP2 1 1 Install HUB and MBX 2010 2 2 Switch Edgesync + SMTP to go to HUB2010 3 3 Internet SMTP Servers Install Edge 2010 4 4 Switch Internet email submission to Edge2010 4 4
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