If you just buy the office 365 service through a domain provider its as simple as a few clicks. Namecheap charges me $6 a year for my domain and $5 a month for an Office 365 mailbox with 5 users. It was a few clicks and it was set up, and I can log into the Office interface to manage the accounts. If you are running your own SMTP server from your home, yes, it can be extra steps. But that’s just silly if you can afford a cloud hosted email.