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Re: Postfix HELP!! - Thanks!

Cross-posted to 2 groups.

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On 2026-02-26, Lawrence D’Oliveiro <ldo@nz.invalid> wrote:
> On Thu, 26 Feb 2026 00:36:32 -0000 (UTC), Lars Poulsen wrote:
>
>> But when my Windows PC that sits on the same LAN tries to submit
>> outgoing mail messages, they fail to go out. It appears that
>> postfix considers them prohibited relaying, even though they are
>> addressed to my own mailbox on my own local mail server.
>
><https://manpages.debian.org/postconf(5)>
>
> As a starting point, I assume you have “permit_mynetworks” listed in
> your “smtpd_relay_restrictions”. In which case, make sure your
> “mynetworks” sitting includes all the appropriate subnets for
> relaying, and only those.
>
> You can use the “postconf -p” to display all current configuration
> settings, whether explicit or defaulted.

Thank you!!
I think this may have solved this problem, so now I can get to
see what the next blockage will be.

As you know, "postconf -p" produces around 950 lines of output, 
so unless you know what to "grep" for, you are lost.
I had read the hint in the comments in main.cf to look in
manual section postconf(5), but it does not mention permit_mynetworks

I am puzzled, as to why this is not set by default. I thought this was
the reason why I was defining the list of mynetworks.

And to Carlos: In the RedHat distributions, the sendmail/postfix/imapd
logs are in /var/log/maillog, /var/log/mail is a directory, containing
only /var/log/mail/statistics.

-- 
Lars Poulsen - an old geek in Santa Barbara, California

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Thread

Postfix HELP!! Lars Poulsen <lars@beagle-ears.com> - 2026-02-26 00:36 +0000
  Re: Postfix HELP!! Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-02-26 05:00 +0000
    Re: Postfix HELP!! - Thanks! Lars Poulsen <lars@beagle-ears.com> - 2026-02-26 13:49 +0000
      Re: Postfix HELP!! - Thanks! Rich <rich@example.invalid> - 2026-02-26 16:02 +0000
        Re: Postfix HELP!! - Thanks! Lars Poulsen <lars@beagle-ears.com> - 2026-02-26 18:09 +0000
          Re: Postfix HELP!! - Thanks! Rich <rich@example.invalid> - 2026-02-27 00:29 +0000
      Re: Postfix - Next: Google Postmaster Tools Lars Poulsen <lars@beagle-ears.com> - 2026-02-26 18:54 +0000
        Re: Postfix - Next: Google Postmaster Tools not@telling.you.invalid (Computer Nerd Kev) - 2026-02-27 06:49 +1000
        Re: Postfix - Next: Google Postmaster Tools Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-02-27 00:23 +0000
        Re: Postfix - Next: Google Postmaster Tools Stéphane CARPENTIER <sc@fiat-linux.fr> - 2026-02-28 12:13 +0000

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