Dear Viktor, I apologize for my new interruption....but after follow your instructions, the Postfix server doesn't show the STARTTLS support via telnet:
$ telnet 10.1.1.1 587 Trying 10.1.1.1... Connected to 10.1.1.1. Escape character is '^]'. ehlo relay.mycompany.com NOTHING TO SHOW!!! Now I have: *main.cf <http://main.cf>:* smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) biff = no append_dot_mydomain = no readme_directory = no # TLS parameters (server side) smtpd_tls_cert_file = /etc/postfix/SSL/MailRelay-server-publica.crt smtpd_tls_key_file = /etc/postfix/SSL/MailRelay-server-privada.pem smtpd_tls_security_level = may smtpd_tls_loglevel = 1 # TLS parameters (client side) smtp_tls_security_level = may smtp_tls_cert_file = smtp_tls_key_file = smtp_tls_loglevel = 1 myhostname = relay.mycompany.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases myorigin = /etc/mailname mydestination = relay.mycompany.com, localhost.mycompany.com, localhost relayhost = mynetworks = 127.0.0.0/8 10.0.0.0/8 192.168.69.0/24 172.16.0.0/12 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_invalid_helo_hostname, reject_non_fqdn_helo_hostname, reject_non_fqdn_sender, reject_unknown_recipient_domain, reject_unknown_sender_domain, reject_unauth_destination, reject_rbl_client zombie.dnsbl.sorbs.net, reject_rbl_client opm.blitzed.org, reject_rbl_client sbl.spamhaus.org, reject_rbl_client pbl.spamhaus.org, reject_rbl_client cbl.abuseat.org check_policy_service unix:private/policy smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destinations disable_vrfy_command = yes smtpd_hard_error_limit = 4 message_size_limit = 15240000 transport_maps = hash:/etc/postfix/transport anvil_rate_time_unit=60s smtpd_client_message_rate_limit = 50 *master.cf <http://master.cf>:* #========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== smtp inet n - - - - smtpd #smtp inet n - - - 1 postscreen #smtpd pass - - - - - smtpd #dnsblog unix - - - - 0 dnsblog #tlsproxy unix - - - - 0 tlsproxy submission inet n - - - - smtpd -o syslog_name=postfix/submission -o smtpd_tls_security_level=encrypt -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_mynetworks,reject -o smtpd_recipient_restrictions= -o smtpd_sender_restrictions= -o smtpd_data_restrictions= -o smtpd_end_of_data_restrictions= -o milter_macro_daemon_name=ORIGINATING #smtps inet n - - - - smtpd # -o syslog_name=postfix/smtps # -o smtpd_tls_wrappermode=yes # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #628 inet n - - - - qmqpd pickup fifo n - - 60 1 pickup cleanup unix n - - - 0 cleanup qmgr fifo n - n 300 1 qmgr #qmgr fifo n - n 300 1 oqmgr tlsmgr unix - - - 1000? 1 tlsmgr rewrite unix - - - - - trivial-rewrite bounce unix - - - - 0 bounce defer unix - - - - 0 bounce trace unix - - - - 0 bounce verify unix - - - - 1 verify flush unix n - - 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - - - - smtp relay unix - - - - - smtp # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - - - - showq error unix - - - - - error retry unix - - - - - error discard unix - - - - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - - - - lmtp anvil unix - - - - 1 anvil scache unix - - - - 1 scache # Agregado para que funcione la implementacion SPF policy unix - n n - - spawn user=nobody argv=/usr/bin/perl /usr/sbin/postfix-policyd-spf-perl spamassassin unix - n n - - pipe user=nobody argv=/usr/bin/spamc --socket=/tmp/spamd.sock -e /usr/sbin/sendmail -oi -f ${sender} ${recipient} # # ==================================================================== # Interfaces to non-Postfix software. Be sure to examine the manual # pages of the non-Postfix software to find out what options it wants. # # Many of the following services use the Postfix pipe(8) delivery # agent. See the pipe(8) man page for information about ${recipient} # and other message envelope options. # ==================================================================== # # maildrop. See the Postfix MAILDROP_README file for details. # Also specify in main.cf: maildrop_destination_recipient_limit=1 # maildrop unix - n n - - pipe flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient} # # ==================================================================== # # Recent Cyrus versions can use the existing "lmtp" master.cf entry. # # Specify in cyrus.conf: # lmtp cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4 # # Specify in main.cf one or more of the following: # mailbox_transport = lmtp:inet:localhost # virtual_transport = lmtp:inet:localhost # # ==================================================================== # # Cyrus 2.1.5 (Amos Gouaux) # Also specify in main.cf: cyrus_destination_recipient_limit=1 # #cyrus unix - n n - - pipe # user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user} # # ==================================================================== # Old example of delivery via Cyrus. # #old-cyrus unix - n n - - pipe # flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user} # # ==================================================================== # # See the Postfix UUCP_README file for configuration details. # uucp unix - n n - - pipe flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) # # Other external delivery methods. # ifmail unix - n n - - pipe flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp unix - n n - - pipe flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient scalemail-backend unix - n n - 2 pipe flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension} mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user} #Added by hand smtp-amavis unix - - y - 30 smtp -o smtp_data_done_timeout=1200s -o smtp_tls_security_level=none ## -o smtp_never_send_ehlo=yes -o disable_dns_lookups=yes 127.0.0.1:10025 inet n - y - - smtpd -o content_filter= -o local_recipient_maps= -o relay_recipient_maps= -o smtpd_restriction_classes= -o smtpd_client_restrictions= -o smtpd_helo_restrictions= -o smtpd_sender_restrictions= -o smtpd_recipient_restrictions=permit_mynetworks,reject -o mynetworks=127.0.0.0/8 When I execute mailx, it doesn't show anything because the Postfix has not STARTTLS capabilities at this moment. Thanks again and apologize for this new message!!!