Scott Kitterman via Postfix-users:
> On Friday, June 2, 2023 7:29:49 PM EDT raf via Postfix-users wrote:
> > On Fri, Jun 02, 2023 at 11:15:23PM +0000, wesley--- via Postfix-users
> <postfix-users@postfix.org> wrote:
> > > when will postfix use /etc/mailname? thank you.
> >
> > Only when you tell it to, and only on debian.
> > I think /etc/mailname is just a debian thing.
> >
> > >From the main.cf.proto file on debian:
> > # 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
> > #myorigin = $myhostname
> > #myorigin = $mydomain
> >
> > I think it's only the debian package version of postfix that supports
> > myorigin having a filename as its value and reading the file.
>
> Originally it was Debian specific, but the code to do so is upstream, but not
> enabled by default. Comment from src/global/mail_params.c:
>
> * XXX Reading the myorigin value from file is originally a Debian Linux
> * feature. This code is not enabled by default because of problems: 1)
> * it re-implements its own parameter syntax checks, and 2) it does not
> * implement $name expansions.
>
> We set -DMYORIGIN_FROM_FILE when building and anyone else can too, if they
> want. It looks like it was included starting in Postfix 2.5.
I suppose that the "makedefs" script could probe for this. It
requires a little scripting and most of the work will be documentation.
Wietse
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