First, I'd start with "Don't run your own email server unless you absolutely have to." Second, if you must... I'd recommend Mail-in-a-Box. MUCH easier to setup

First, I'd start with "Don't run your own email server unless you absolutely have to." Second, if you must... I'd recommend Mail-in-a-Box. MUCH easier to setup / maintain than this one, at least from a cursory read. https://mailinabox.email https://mailinabox.email