michaelof--- via Postfix-users wrote:
> > Thank you so much for answering, Wietse! > > Followed your recommendations, master.cf for submission and smtps now looks > as follows: > > > Opened smtps service in firewalld. > > Changed email user config for testing in Thunderbird from port 578 to 465, > and from "STARTTLS" to "SSL/TLS". Sending from Thunderbird works at once. > > Sending from NVR still fails, new msgs in log: > > 2024-02-22T17:49:57.074140+01:00 vserver postfix/smtps/smtpd[165894]: connect > from <FAILED: sender-dns-name[IPv4]> > 2024-02-22T17:49:57.177663+01:00 vserver postfix/smtps/smtpd[165894]: > warning: <FAILED: sender-dns-name[IPv4]> : SASL LOGIN authentication failed: > Invalid authentication mechanism > 2024-02-22T17:49:57.215718+01:00 vserver postfix/smtps/smtpd[165894]: > NOQUEUE: reject: RCPT from <FAILED: sender-dns-name[IPv4]> : 554 5.7.1 > <<FAILED: sender-dns-name[IPv4]> >: Client host rejected: Access denied; > from=<sender email address> to=<rcpt email address> proto=ESMTP helo=<dvrdvs> > 2024-02-22T17:49:57.225190+01:00 vserver postfix/smtps/smtpd[165894]: lost > connection after RCPT from <FAILED: sender-dns-name[IPv4]> > 2024-02-22T17:49:57.225497+01:00 vserver postfix/smtps/smtpd[165894]: > disconnect from <FAILED: sender-dns-name[IPv4]> ehlo=1 auth=0/1 mail=1 > rcpt=0/1 commands=2/4 > > Any idea what's wrong or missing? Can you set any other settings regarding authentication in your NVR besides user/password? Could enable verbose logging for the smtpd service on 465 or use notify_classes to get a transcript of the session. I am curious as to what authentication mechanism your NRV is trying. Cheers, Simon
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