Re: Unable to receive mail from certain hosts

[Wietse Venema]

Daniel Armando Rodriguez:
> Jul 27 07:27:52 postoffice postfix/smtpd[13730]: < lists.isc.org[149.20.1.60]:
> MAIL FROM:<bind-users-bounces+usuario=dominio.edu...@lists.isc.org>
> SIZE=1997
> Jul 27 07:27:52 postoffice postfix/smtpd[13730]: > lists.isc.org[149.20.1.60]:
> 530 5.7.0 Must issue a STARTTLS command first

This proves that you still have mandatory TLS enabled.

Instead of pasting main.cf snippets, do this:

    postconf -n | grep tls

    postconf -P | grep tls

And report the output.

        Wietse