Hello everyone, I have a working multi-instance setup with Postfix version 3.8.4 What surprises me is that “recipient_canonical” works for some recipients but not for all. It seems that "recipient_canonical" works for orig_to recipients in "mydomain", while it does not work for orig_to recipients in "other.domain".
Thanks in advance for any help on where to start Peter Here comes my setup: # postconf -c /etc/postfix-common/ -nf alias_maps = hash:/etc/aliases append_at_myorigin = no authorized_submit_users = root bounce_queue_lifetime = 3d compatibility_level = 2 config_directory = /etc/postfix-common data_directory = /var/lib/postfix-common debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd $daemon_directory/$process_name $process_id & sleep 5 delay_warning_time = 1h enable_long_queue_ids = yes header_checks = pcre:/etc/postfix-common/header_checks inet_protocols = ipv4 internal_mail_filter_classes = bounce local_header_rewrite_clients = permit_inet_interfaces permit_mynetworks mailbox_size_limit = 0 mailq_path = /usr/bin/mailq.postfix manpage_directory = /usr/share/man maximal_queue_lifetime = 3d message_size_limit = 36700160 mime_header_checks = pcre:/etc/postfix-common/mime_header_checks multi_instance_enable = yes multi_instance_group = root multi_instance_name = postfix-common mynetworks = 127.0.0.0/8 10.127.0.0/28 newaliases_path = /usr/bin/newaliases.postfix parent_domain_matches_subdomains = debug_peer_list,fast_flush_domains,mynetworks,permit_mx_backup_networks,qmqpd_authorized_clients,relay_domains queue_directory = /var/spool/postfix-common readme_directory = /usr/share/doc/postfix/README_FILES recipient_canonical_maps = pcre:/etc/postfix-common/recipient_canonical sample_directory = /usr/share/doc/postfix/samples sender_canonical_maps = hash:/etc/postfix-common/sender_canonical sender_dependent_relayhost_maps = pcre:/etc/postfix-common/sender_dependent_relayhost_map sendmail_path = /usr/sbin/sendmail.postfix smtp_helo_timeout = 30s smtp_pix_workarounds = smtp_tls_CAfile = /etc/pki/tls/certs/ca-bundle.crt smtp_tls_CApath = /etc/pki/tls/certs smtp_tls_cert_file = $smtpd_tls_cert_file smtp_tls_key_file = $smtpd_tls_key_file smtp_tls_loglevel = 1 smtp_tls_mandatory_protocols = !SSLv2,!SSLv3,!TLSv1 smtp_tls_protocols = !SSLv2,!SSLv3,!TLSv1 smtp_tls_security_level = may smtpd_forbid_bare_newline = yes smtpd_forbid_bare_newline_exclusions = $mynetworks smtpd_recipient_restrictions = check_recipient_access hash:/etc/postfix-common/recipient_access, permit_mynetworks, reject_unauth_destination smtpd_sender_restrictions = hash:/etc/postfix-common/sender_access smtpd_tls_cert_file = /etc/pki/tls/certs/star.mydomain.crt smtpd_tls_key_file = /etc/pki/tls/private/decrypted.star.mydomain.de.key smtpd_tls_loglevel = 1 smtpd_tls_mandatory_protocols = !SSLv2,!SSLv3,!TLSv1 smtpd_tls_protocols = !SSLv2,!SSLv3,!TLSv1 smtpd_tls_security_level = may transport_maps = hash:/etc/postfix-common/transport /etc/postfix-common/recipient_canonical # below works /recipient@host.mydomain/ recipient@subdomain.mydomain # below works NOT /recipient@other.domain/ recipient@subdomain.mydomain /var/log/maillog 2024-05-13 11:05:46 smtp01 postfix-common/smtpd[2085384]: NOQUEUE: reject: RCPT from unknown[10.127.0.14]: 554 5.7.1 <recipient@other.domain>: Recipient address rejected: Access denied; from=<sender@subdomain.mydomain> to=<recipient@other.domain> proto=SMTP helo=<10.127.0.14> 2024-05-13 11:05:46 smtp01 postfix-common/smtpd[2085384]: using backwards-compatible default setting smtpd_relay_before_recipient_restrictions=no to reject recipient "recipient@other.domain" from client "unknown[10.127.0.14]"
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