On Mon, Jan 11, 2021 at 11:48:25PM -0500, Bill Cole wrote: > On 11 Jan 2021, at 21:49, Bob Jones wrote: > > > Also, what does all this mean essentially (in English)? > > The man page for master(5) is written in English and provides a standard > answer. Is there something unclear there?
That's much too glib, somewhat bordering on just rude. :-( And not even directly relevant, there's no mention of bounce, discard, ... there, nor even mention of delivery agents. It is just master.cf *syntax*. A much better reference is: http://www.postfix.org/OVERVIEW.html which does go over the roles of the various components. -- Viktor.