Daniel Armando Rodriguez: > Jul 27 07:27:52 postoffice postfix/smtpd[13730]: < lists.isc.org[149.20.1.60]: > MAIL FROM:<[email protected]> > 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
