[ Thanks to Till Brehm
for these links. ]
From Part One:
“The virtual domain support in Postfix is actually quite robust.
There are three different ways you host virtual domains with
Postfix and they’re all described here. We’ll be looking at the
third one: separate domains and non-unix accounts.“Why this one? Because in the end, this options gives us the
most flexibility. It’s a little more complicated to set up and
understand but well worth it when you’re hosting several
domains…”
Complete
Story (Part One)
Complete
Story (Part Two)