Yes, I have a physical dedicated server that is colocated that handles all of my email (along with websites, FTP and a few other services), and a second server in my home that acts as a secondary email server with a nicer UI that gathers up all the email from the main server and lets me read it locally either on laptop, desktop or phone. I have a static IP on my main server, and I've had that same IP for going on 20 years, so the reputation is of the IP solid.