I've been using https://mailinabox.email https://mailinabox.email on a small VPS where I host a few other websites and projects. I'd recommend it for the manage

I've been using https://mailinabox.email https://mailinabox.email on a small VPS where I host a few other websites and projects. I'd recommend it for the management aspect: It has backup scripts and a UI for let's encrypt and dns entries.