I am running exchange server 2007 sp1 on my windows sbs server 2007 sp2, we have a sonicwall TZ180 firewall. Today Cablevision came in and changed our modem. Our static IP address did not change. We are no longer receiving emails from outside our network, though outgoing mail is still delivered. I ran exchange troubleshooting agent and received the error message "Serve does not support secure connections"
Please help me identify and resolve the source of the break in communications.