On Sun, Jul 28, 2024 at 11:00:30AM +0000, Laura Smith via Postfix-users wrote:

> > On Sun, Jul 28, 2024 at 09:45:45AM +0000, Laura Smith via Postfix-users 
> > wrote:
> > 
> > > The reporting program is postfix/smtpd
> > > 
> > > postconf output:
> > > 
> > > smtp inet n - y - - smtpd
> > 
> > 
> > It runs in a chroot jail, where likely /etc/resolv.conf or related
> 
> My resolv.conf etc are standard.  I have made no modifications.  The
> host is a Debian host and its DNS stuff is set once and once only, in
> /etc/systemd/network/10-ens.network and that's it.

Yes, but the chrooted smtpd(8) process reads:

    /var/spool/postfix/etc/resolv.conf

rather than /etc/resolv.conf, because that's what chroot jails do.

> I know you're desperately trying to finger point elsewhere but I'm
> pretty sure you are barking up the wrong tree.  Everything else works,
> apart from postfix.

No, I am giving you sound advice based on 23+ years of experience with
Postfix, and a few more decades with Unix systems.  No desperation, just
cold hard facts.  You can ignore the advice if you like, but that does
nothing invalidate it.

-- 
    Viktor.
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