Exchange 2010 comes with 3 servers,, 2 servers for internal network and 1 external network .. External server with 2 NIC cards 1 in DMZ (external) that will transfer mail to outside world and 1 connected to core switch (internal), what ports i have to allow in access-list and in static Natting statement for this exchange sever.
The external server external NIC IP address i have to NAT statically with public IP with specific ports ??????? correct me if i m wrong. I m pretty sure SMTP and POP3.and any more port numbers.
I have to add a static route for the internal network on the Exchange server which is on the DMZ network becz Microsoft doesnt accepts 2 default gateway.