How To Get Postfix To Use SMTP-AUTH *WITHOUT* MySQL

I just finished moving my email infrastructure to the new server (Gentoo + Deathgod Box of Doom). I had to wrangle quite a bit with SMTP-AUTH this time, and found very little help out there that didn’t have to do with using MySQL for the authentication piece. For me (and probably many others), that’s just overkill.

So after figuring out how to do it I decided to do a writeup on it. I would very much like to save others from having to go through the same thing I did. Plus, when I inevitably forget a step someday I’ll have this to refer to:

How To Get Postfix To Use SMTP-AUTH WITHOUT Using MySQL