Bill Cole via Postfix-users:
> On 2025-02-03 at 13:07:38 UTC-0500 (Mon, 3 Feb 2025 13:07:38 -0500)
> Dan Mahoney via Postfix-users <d...@prime.gushi.org>
> is rumored to have said:
>
> > When calling ?postfix reload?, should "postfix/postfix-script: refreshing
> > the Postfix mail system? be written to stderr?
>
> Yes.
>
> > It?s not an error, and it feels like this message should go to stdout, or
> > that there should be a command-line option to suppress non-error messages.
>
> It is really more useful to think of stderr as diagnostic output or
> meta-output rather than strictly errors.
>
For practical reasons, all info (debug), warning, etc., messages
are sent to stderr, so that they won't mess up the 'data' output
from programs such as postcat, postmap, postqueue, and so on.
As Bill observes, some of these are non-error outputs.
Wietse
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