> On 11 Jun 2021, at 1:36 pm, Dan White <d_e_wh...@icloud.com> wrote:
>
> This page: http://www.postfix.org/OVERVIEW.html
> provides an excellent “picture” of how a message is passed between server
> processes.
>
> What I cannot yet get my brain wrapped around is how the server process
> sequences are expressed and/or configured in the master.cf file.
The master.cf file neither defines nor expresses the processing
sequence. It only defines the *set* of supported service endpoints.
Communication between the services is driven by their own internal
logic, which master(8) does not concern itself with.
--
Viktor.
