On Fri, Feb 12, 2021 at 01:08:07PM -0500, Viktor Dukhovni wrote:
> On Fri, Feb 12, 2021 at 11:14:24AM +0000, Dominic Raferd wrote:
>
> > On 12/01/2021 01:21, Viktor Dukhovni wrote:
> > > On Tue, Jan 12, 2021 at 01:00:26AM +0000, JL (Postfix Readers A/c) wrote:
> > >
> > >> Can someone point me at the right place in the docs, or offer advice
> > >> which maybe could also be added to the docs (!) to help others?
> > > Each main.cf parameter documents its syntax. Various parameters, that
> > > take literal lists of values in-line, also take a file name whose
> > > content contains similar values...
> >
> > How to know which parameters accept a filename as argument in this way?
> >
> > By experiment, myorigin does but mydomain and myhostname do not. It
> > would be helpful (to me) if myhostname took a filename as argument.
>
> You're perhaps confusing myorigin with mydestination.
>
> The myorigin parameter is also not a match list, and so (in the
> "upstream" official Postfix releases) does not support indirect
> specification via a file.
>
> I am not aware of any "single-valued" parameters that are match lists in
> the upstream release. Debian patches Postfix to support an external
> file for (IIRC) myhostname, but that's not something that you'll see
> otherwise.
>
The Debian patch sets myorigin:-
# Debian GNU/Linux specific: Specifying a file name will cause the
# first line of that file to be used as the name. The Debian default
# is /etc/mailname.
#
#myorigin = /etc/mailname
--
Chris Green
