SuiteCRM on 2 or more servers


I’m set up a SuiteCRM with more than 1 million targets. Used for email blast. It takes long time to finished sending emails with more than 1 million recipients. I’m planning to setup another SuiteCRM (on a separate CentOS Linux box) and divide the target to both servers so email sending time will be less. With this, how can i consolidate the report “Viewed messages”, “click-tru”, etc. is it possible?

Thank you