Here's the Present Scenario -
I have a client who have an ADSL 2+ Connection which they use in their office. We are using a snapgear firewall which is connected to the ADSL bridged modem (all the configuration is shown in the attachment). Now the problem ATM seems to be that they send and recieve a lot of emails each day which basically clogs up the internet making it really slow and unusable.
Server is running Windows Server 2008 R2 with Exchange 2010 and only has one Network Card configured at the moment.
We have proposed to the customer that they get a seperare new ADSL connection purely for their sending and recieveing emails (i.e. EXCHANGE 2010) and for every thing else like (RRAS VPN, Incoming Website IIS Traffic, Internet Browsing for staff) we use the existing ADSL connection.
What I want to be able to do now is configure a secondary network card on the server with IP of say 192.168.1.11 and have it set purely for Exchange 2010.
Recieving Emails - This shouldn't be hard as we can change our MX records to point to the new WAN IP and all incoming emails will flow through the new ADSL connection.
Sending Emails - I wanna know how do I configure this. I wanna be able to say in Exchange 2010 somewhere that send emails through the secondary network card. Obviously on this new network card I will be setting up the default gateway as 192.168.1.254. How do I configure all this?? And does my plan sound easy enough to implement.
I hope the picture attached explains everything, but if any questions, please let me know.