Exchange 2010: Network Communication Table
I figured I’d post the massive table of firewall rules I compiled for my Exchange 2010 firewall generation script. It has both the source and destination roles for many aspects of an Exchange environment. Where there are ???’s is where I’m simply not certain (mainly around encryption between certain roles). If anyone spots any mistakes or omissions please let me know and I’ll update the accordingly.
Exchange 2010 Network Communication Table By Role