I'm configuring a Sonicwall TZ205 with SBS/Exchange 2010 and I am getting network issues where the "server cannot open ports on the router. Ensure that ports 80, 443 and 987 are opened and pointed the IP address on the server. If you are using e-mail open port 25 and if you are using VPN, open port 1723."
I used the wizard on Sonicwall TZ205 to create the NAT rules for "SBS1" public and private. Am I missing something else?