I've hosted my own email for over 30 years. About five years ago I switched from integrating it all myself, to using "mail in a box": https://mailinabox.email

I've hosted my own email for over 30 years. About five years ago I switched from integrating it all myself, to using "mail in a box": https://mailinabox.email/ https://mailinabox.email/ It's modern, secure, and easy to manage. It's free, but you are encouraged to donate.