On 7/24/2017 7:33 AM, post...@xmas.de wrote: > Hi, > > isn't it possible to enforce TLS outbound to an MX ? > In the example below, if mx0.example.com isn't offering TLS the > email is sent unencrypted !? > Enforcing TLS to a domain ist working as expected. > > tls_policy: > [mx0.example.com] encrypt > [4.3.2.1] encrypt
According to the docs, the MX is not a supported key for the map. Use the recipient domain or if you use a transport_maps entry, use the verbatim next-hop from transport_maps. http://www.postfix.org/postconf.5.html#smtp_tls_policy_maps -- Noel Jones > > postfix-3.2.0 > > alias_database = hash:/etc/mail/aliases > alias_maps = hash:/etc/mail/aliases > append_dot_mydomain = no > authorized_submit_users = root > canonical_classes = envelope_sender, envelope_recipient > canonical_maps = regexp:/etc/postfix-mx1/canonical > compatibility_level = 2 > config_directory = /usr/local/postfix/postfix-outgoing > data_directory = /var/lib/postfix-outgoing > default_database_type = btree > default_destination_concurrency_limit = 500 > default_destination_recipient_limit = 500 > disable_vrfy_command = yes > fast_flush_domains = > hopcount_limit = 50 > in_flow_delay = 0 > inet_interfaces = 192.168.0.41 > inet_protocols = ipv4 > local_recipient_maps = > local_transport = error:5.1.1 Mailbox unavailable > mailq_path = /usr/local/postfix/bin/mailq > masquerade_classes = envelope_recipient, envelope_sender, > header_sender, header_recipient > masquerade_domains = xyz.com pallas.de xyz.com > master_service_disable = > maximal_queue_lifetime = 5d > message_size_limit = 50000000 > multi_instance_enable = yes > multi_instance_group = mta > multi_instance_name = postfix-outgoing > mydestination = > mydomain = xyz.com > myhostname = outgoing.xyz.com > mynetworks = $config_directory/mynetworks > mynetworks_style = host > myorigin = $mydomain > newaliases_path = /usr/local/postfix/bin/newaliases > queue_directory = /var/spool/postfix-outgoing > sender_dependent_relayhost_maps = > btree:/etc/postfix-outgoing/transport_sender > sendmail_path = /usr/local/postfix/sbin/sendmail > smtp_bind_address = 192.168.0.41 > smtp_dns_support_level = enabled > smtp_host_lookup = dns, native > smtp_tls_cert_file = ${smtpd_tls_cert_file} > smtp_tls_ciphers = high > smtp_tls_exclude_ciphers = aNULL eNULL EXPORT DES RC4 MD5 PSK aECDH > EDH-DSS-DES-CBC3-SHA EDH-RSA-DES-CDC3-SHA KRB5-DE5 CBC3-SHA > smtp_tls_key_file = ${smtpd_tls_key_file} > smtp_tls_loglevel = 1 > smtp_tls_mandatory_protocols = !SSLv2, !SSLv3 > smtp_tls_policy_maps = btree:/etc/postfix-outgoing/tls_policy > smtp_tls_protocols = !SSLv2, !SSLv3 > smtp_tls_security_level = may > smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache > smtpd_banner = $myhostname ESMTP > smtpd_discard_ehlo_keywords = silent-discard, etrn > smtpd_error_sleep_time = 3s > smtpd_helo_required = yes > smtpd_recipient_limit = 500 > smtpd_recipient_restrictions = reject_unknown_recipient_domain, > permit_mynetworks, reject > smtpd_relay_restrictions = > smtpd_tls_CAfile = /etc/postfix-outgoing/cacert.pem > smtpd_tls_cert_file = /etc/postfix-outgoing/outgoing.xyz.com.crt > smtpd_tls_ciphers = high > smtpd_tls_dh1024_param_file = /etc/postfix-outgoing/dhparams.pem > smtpd_tls_exclude_ciphers = aNULL eNULL EXPORT DES RC4 MD5 PSK aECDH > EDH-DSS-DES-CBC3-SHA EDH-RSA-DES-CDC3-SHA KRB5-DE5 CBC3-SHA > smtpd_tls_key_file = /etc/postfix-outgoing/outgoing.xyz.com.key > smtpd_tls_loglevel = 1 > smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3 > smtpd_tls_protocols = !SSLv2, !SSLv3 > smtpd_tls_received_header = yes > smtpd_tls_security_level = may > smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache > smtputf8_enable = no > tls_preempt_cipherlist = yes > transport_maps = btree:/etc/postfix-outgoing/transport > unknown_local_recipient_reject_code = 550 > > > 192.168.0.41:25 inet n - n - - smtpd > pickup unix n - n 60 1 pickup > cleanup unix n - n - 0 cleanup > qmgr unix n - n 300 1 qmgr > tlsmgr unix - - n 1000? 1 tlsmgr > rewrite unix - - n - - trivial-rewrite > bounce unix - - n - 0 bounce > defer unix - - n - 0 bounce > trace unix - - n - 0 bounce > verify unix - - n - 1 verify > flush unix n - n 1000? 0 flush > proxymap unix - - n - - proxymap > proxywrite unix - - n - 1 proxymap > smtp unix - - n - - smtp > relay unix - - n - - smtp > showq unix n - n - - showq > error unix - - n - - error > retry unix - - n - - error > discard unix - - n - - discard > local unix - n n - - local > virtual unix - n n - - virtual > lmtp unix - - n - - lmtp > anvil unix - - n - 1 anvil > scache unix - - n - 1 scache > >
