You're right, Viktor. See below :
smtp inet n - y - 1 postscreen -o smtpd_sasl_auth_enable=no smtpd pass - - y - - smtpd dnsblog unix - - y - 0 dnsblog tlsproxy unix - - y - 0 tlsproxy smtps inet n - y - - smtpd submission inet n - y - - smtpd -o syslog_name=postfix/submission -o smtpd_tls_security_level=may -o smtpd_tls_auth_only=yes -o smtpd_sasl_auth_enable=yes -o smtpd_sasl_type=dovecot -o smtpd_sasl_path=private/auth -o smtpd_sasl_security_options=noanonymous -o smtpd_client_restrictions=$mua_client_restrictions -o smtpd_sender_login_maps=$mua_sender_login_maps -o smtpd_sender_restrictions=$mua_sender_restrictions -o smtpd_relay_restrictions=$mua_relay_restrictions -o milter_macro_daemon_name=ORIGINATING -o smtpd_helo_required=no -o smtpd_helo_restrictions= -o cleanup_service_name=submission-header-cleanup pickup unix n - y 60 1 pickup cleanup unix n - y - 0 cleanup qmgr unix n - n 300 1 qmgr tlsmgr unix - - y 1000? 1 tlsmgr rewrite unix - - y - - trivial-rewrite bounce unix - - y - 0 bounce defer unix - - y - 0 bounce trace unix - - y - 0 bounce verify unix - - y - 1 verify flush unix n - y 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - y - - smtp relay unix - - y - - smtp showq unix n - y - - showq error unix - - y - - error retry unix - - y - - error discard unix - - y - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - y - - lmtp anvil unix - - y - 1 anvil scache unix - - y - 1 scache submission-header-cleanup unix n - n - 0 cleanup -o header_checks=regexp:/etc/postfix/submission_header_cleanup alias_maps = hash:/etc/aliases append_dot_mydomain = no biff = no bounce_queue_lifetime = 1h bounce_template_file = /etc/postfix/bounce.cf compatibility_level = 2 inet_interfaces = 127.0.0.1, ::1, ww.xx.yy.zz local_recipient_maps = $virtual_mailbox_maps mailbox_size_limit = 0 maximal_backoff_time = 15m maximal_queue_lifetime = 1h message_size_limit = 104857600 milter_default_action = accept milter_mail_macros = i {mail_addr} {client_addr} {client_name} {auth_authen} milter_protocol = 6 minimal_backoff_time = 5m mua_client_restrictions = permit_mynetworks,permit_sasl_authenticated,reject mua_relay_restrictions = reject_non_fqdn_recipient,reject_unknown_recipient_domain,permit_mynetworks,permit_sasl_authenticated,reject mua_sender_login_maps = mysql:/etc/postfix/sql/sender-login-maps.cf mua_sender_restrictions = permit_mynetworks,reject_non_fqdn_sender,reject_sender_login_mismatch,permit_sasl_authenticated,check_sender_access mysql:/etc/postfix/sql/sender_checks.cf,reject mydestination = myhostname = mailserver.domain.dom mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 non_smtpd_milters = inet:localhost:11332 postscreen_access_list = permit_mynetworks cidr:/etc/postfix/postscreen_access postscreen_blacklist_action = drop postscreen_dnsbl_action = drop postscreen_dnsbl_sites = all.spam-rbl.fr*2, zen.spamhaus.org*3, bl.spameatingmonkey.net*2, postscreen_dnsbl_threshold = 2 postscreen_greet_action = drop queue_run_delay = 5m recipient_delimiter = + smtp_dns_support_level = dnssec smtp_tls_ciphers = high smtp_tls_loglevel = 2 smtp_tls_policy_maps = mysql:/etc/postfix/sql/tls-policy.cf smtp_tls_security_level = dane smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache smtpd_banner = Bienvenue sur le serveur mail mailserver.domain.dom ! smtpd_client_restrictions = permit_mynetworks check_client_access hash:/etc/postfix/without_ptr reject_unknown_client_hostname smtpd_data_restrictions = reject_unauth_pipelining smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks reject_invalid_helo_hostname reject_non_fqdn_helo_hostname reject_unknown_helo_hostname smtpd_milters = inet:localhost:11332 smtpd_recipient_restrictions = check_recipient_access hash:/etc/postfix/custom_replies check_recipient_access mysql:/etc/postfix/sql/recipient-access.cf check_policy_service inet:127.0.0.1:12340 smtpd_relay_restrictions = reject_non_fqdn_recipient permit_sasl_authenticated reject_unknown_recipient_domain permit_mynetworks reject_unauth_destination smtpd_sender_restrictions = check_sender_access hash:/etc/postfix/sender_access smtpd_tls_CAfile = /etc/letsencrypt/live/mail.ngservers.com/chain.pem smtpd_tls_cert_file = /etc/letsencrypt/live/mail.ngservers.com/cert.pem smtpd_tls_ciphers = high smtpd_tls_key_file = /etc/letsencrypt/live/mail.ngservers.com/privkey.pem smtpd_tls_protocols = !SSLv2, !SSLv3, TLSv1.1, TLSv1.2 smtpd_tls_security_level = may smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache tls_high_cipherlist = EDH+CAMELLIA:EDH+aRSA:EECDH+aRSA+AESGCM:EECDH+aRSA+SHA256:EECDH:+CAMELLIA128:+AES128:+SSLv3:!aNULL:!eNULL:!LOW:!3DES:!MD5:!EXP:!PSK:!DSS:!RC4:!SEED:!IDEA:!ECDSA:kEDH:CAMELLIA128-SHA:AES128-SHA tls_preempt_cipherlist = yes tls_ssl_options = NO_COMPRESSION virtual_alias_maps = mysql:/etc/postfix/sql/aliases.cf,mysql:/etc/postfix/sql/email2email.cf virtual_mailbox_domains = mysql:/etc/postfix/sql/domains.cf virtual_mailbox_maps = mysql:/etc/postfix/sql/accounts.cf virtual_transport = lmtp:unix:private/dovecot-lmtp -----Message d'origine----- De : owner-postfix-us...@postfix.org <owner-postfix-us...@postfix.org> De la part de Viktor Dukhovni Envoyé : jeudi 1 avril 2021 19:41 À : Postfix users <postfix-users@postfix.org> Objet : Re: problem connecting from Outlook Android > On Apr 1, 2021, at 1:38 PM, DEPRÉ Gaëtan - NGServers.com > <gde...@ngservers.com> wrote: > > I enabled port 465, but no chance. Still the same problem, only with > android/outlook... This would be far more productive if you also post configuration details. $ postconf -Mf $ postconf -nf -- Viktor.