Sure, I do it, and many others. Some people say it's hard, but I think it's much easier than it used to be, technically. You have projects like https://stalw.art which make it quite easy. Single binary setup which covers all functionality you need. Setting up SPF, DKIM and DMARC is also easy. The only thing that remains is IP reputation, but even then, I haven't had major issues. People seem to receive the few emails that I send.