Mail Server Basics: Handling

Maybe I’m playing off a different sheet of music here…

I,hypothetically, have two separate VPSes (both have Virtualmin installed).

One of them is my Webserver and the other is my Email server.

My webserver hosts my website - myawesomewebsite.com

I need my email server to handle the email as users@myawesomewebsite.com.

This seems straightforward if Web and Email are both handled by the same VPS, but I’m lost as to how to accomplish this with them on two different VPS’s.