On Tue, May 27, 2025 at 12:22:17PM -0400, Jason Hirsh wrote:
> > From: Jason Hirsh <kasd...@mac.com>
> > Subject: Killed postfix
> > Date: May 27, 2025 at 12:11:13 PM EDT
> > To: postfix-u...@postfix.org
[ Please format list posts as simple text, rather than HTML markup. ]
> > Since changing my SSL certficates. I have been having the following error
> >
> > In: MAIL
> > FROM:<incoming+verp-8bb9d4ff0fa0abc0a72c894edd68d...@letsencrypt.discoursemail.com>
> > SIZE=12758
> > Out: 250 2.1.0 Ok
> > In: RCPT TO:<ja...@theoceanwindow.com>
> > ORCPT=rfc822;ja...@theoceanwindow.com
> > Out: 451 4.3.5 Server configuration error
The details of the configuration error are in your mail log file.
They are not shared with remote SMTP clients.
> > I am pretty sure I messed up main.cf and maybe master.cf (any thing
> > worth breaking is worth breaking well) as I was tweaking to deal
> > with spam It was working till I missed with it. Decided t aak for
> > help before I do more damage Mail from my local client seem to go
> > fine
You probably inadvertently broke something else in the config, since
even changes that break TLS should not break recipient validation.
> > My postconf -nb is
> >
> > smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated
> > defer_unauth_destination
You'll ultimately want "reject_unauth_destination", rather than "defer",
once your settings are otherwise stable.
> > unknown_local_recipient_reject_code = 550
That's a default setting, so not needed, however along the same lines, I
have, which default to '4XX' as an initial safety net.
plaintext_reject_code = 550
unknown_address_reject_code = 550
unknown_client_reject_code = 550
unknown_hostname_reject_code = 550
unverified_recipient_reject_code = 550
unverified_sender_reject_code = 550
> > Any suggestions would be greatly appreciated
Look in your logs, and make sure all the tables are usable,
especially mysql and policy lookup services.
--
Viktor.
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