> On Mar 13, 2017, at 10:39 PM, Jeronimo L. Cabral <jelocab...@gmail.com> wrote: > > After set the verbose logging: > > debug_peer_list = 10.1.1.1 (client IP)
> and try to send a message with mailx, the log is empty because the STARTTLS > capabilities on port TCP/587 are nor present: That's because there's a typo in: smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destinations That last element should be singular: "reject_unauth_destination" not plural "...destinations" This would be easily found in your logs: http://www.postfix.org/DEBUG_README.html#logging -- Viktor.