Most businesses just lean on an MSP to handle their domain email so they don’t have to mess with the setup, but you can definitely do it yourself with Microsoft 365 or Google Workspace if that’s the route you want to take. There are tons of solid help articles and guides online that walk you through both platforms step-by-step, so it’s totally doable on your own. 

(We work in that space too, so happy to point you in the right direction if you ever need info.)