Route mails based on internal sender domain.

Hi All,

I have Hosted Exchange 2013 (1CAS and 1MBS) with the following domains. I already have an SMTP Send connector to route all mails (*) to a smart host.

DomainA.com

DomainB.com

DomainC.com

Now my requirement is - : I need to create an internet SMTP connector to route only mails from DomainC.com to use MX. How can it be configured or please let me know any other alternatives/best way.

Basically DomainC.com is for bulk emails, i need to outbound them through different IP.

Regards,

Vinod