Hallo zusammen,
ich betreibe zwei Postfix Server, welche als Mailrelays dienen - einer für eingehende, einer für ausgehende E-Mails. Nun würde ich gern beide Server auf einem vereinen. Dazu habe ich zwei Postfix-Instanzen erstellt. Sobald ich Postfix-out (2. Instanz) starte funktioniert auch alles. Über Instanz 1 (eth0) kommen die Mails rein, werden an Amavis (Spamassassin + Clamd) übergeben und kommen wieder zurück an Instanz 1. Instanz 2 nimmt auch die Mails an und versendet sie nach draußen. Nach einiger Zeit (mal 1-2 Minuten, mal erst nach 30 Minuten) hängen aber Mails in der Queue (Timeout). Grund ist, dass Postfix-in die zweite NIC eth1 zum Versenden der Mails an den internen Exchange-Server nutzt statt eth0. Die Firewall lässt nur von eth0 eine Verbindung nach intern zu. Netstat zeigt an, dass eben eth1 versucht den Exchangeserver zu kontaktieren. Ich habe schon jede Menge mit smtp_bind_address und inet_interfaces herumprobiert. Ohne Erfolg. Hat jemand eine Idee, wo ich noch drehen kann? Hier noch die Configs: Postconf -n: alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases alternate_config_directories = /etc/postfix-out append_dot_mydomain = no biff = no canonical_maps = hash:/etc/postfix/canonical command_directory = /usr/sbin config_directory = /etc/postfix content_filter = smtp-amavis:[127.0.0.1]:10024 daemon_directory = /usr/lib/postfix debug_peer_level = 2 defer_transports = disable_dns_lookups = no disable_mime_output_conversion = no header_checks = regexp:/etc/postfix/header_checks home_mailbox = Maildir/ html_directory = /usr/share/doc/packages/postfix/html inet_interfaces = <dnsname1.mydomain.com>, localhost, 127.0.0.1 inet_protocols = all mail_owner = postfix mail_spool_directory = /var/mail-in mailbox_command = /usr/bin/procmail mailbox_size_limit = 0 mailbox_transport = mailq_path = /usr/bin/mailq manpage_directory = /usr/share/man masquerade_classes = envelope_sender, header_sender, header_recipient masquerade_domains = masquerade_exceptions = root message_size_limit = 4000000 mydestination = <dnsname1.mydomain.com>, localhost mydomain = <mydomain.com> myhostname = <dnsname1.mydomain.com> mynetworks = <IP-eth0> mynetworks_style = subnet myorigin = /etc/mailname newaliases_path = /usr/bin/newaliases queue_directory = /var/spool/postfix-in readme_directory = /usr/share/doc/packages/postfix/README_FILES recipient_delimiter = + relay_domains = <mydomain.com> relay_recipient_maps = hash:/etc/postfix/relay_recipients relayhost = <interne IP Exchange> relocated_maps = hash:/etc/postfix/relocated sample_directory = /usr/share/doc/packages/postfix/samples sender_canonical_maps = hash:/etc/postfix/sender_canonical sendmail_path = /usr/sbin/sendmail setgid_group = postdrop smtp_sasl_auth_enable = no smtp_use_tls = no smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) smtpd_client_restrictions = smtpd_helo_restrictions = smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination,reject_rbl_client zen.spamhaus.org smtpd_sasl_auth_enable = no smtpd_sender_restrictions = hash:/etc/postfix/access smtpd_use_tls = no strict_8bitmime = no strict_rfc821_envelopes = no transport_maps = hash:/etc/postfix/transport unknown_local_recipient_reject_code = 450 virtual_alias_domains = hash:/etc/postfix/virtual virtual_alias_maps = hash:/etc/postfix/virtual Postconf -c /etc/postfix-out/ -n: alias_database = hash:/etc/aliases alias_maps = hash:/etc/aliases alternate_config_directories = /etc/postfix append_dot_mydomain = no biff = no canonical_maps = hash:/etc/postfix-out/canonical command_directory = /usr/sbin config_directory = /etc/postfix-out/ daemon_directory = /usr/lib/postfix debug_peer_level = 2 defer_transports = disable_dns_lookups = no disable_mime_output_conversion = no home_mailbox = Maildir/ html_directory = /usr/share/doc/packages/postfix/html inet_interfaces = <dnsname2.mydomain.com> inet_protocols = all mail_owner = postfix mail_spool_directory = /var/mail-out mailbox_command = /usr/bin/procmail mailbox_size_limit = 0 mailbox_transport = mailq_path = /usr/bin/mailq manpage_directory = /usr/share/man masquerade_classes = envelope_sender, header_sender, header_recipient masquerade_domains = masquerade_exceptions = root message_size_limit = 4000000 mydestination = <dnsname2.mydomain.com> mydomain = <mydomain.com> myhostname = <dnsname2.mydomain.com> mynetworks = <interne IPs, DMZ-IPs, nicht eht0!> mynetworks_style = subnet myorigin = /etc/mailname-out newaliases_path = /usr/bin/newaliases queue_directory = /var/spool/postfix-out readme_directory = /usr/share/doc/packages/postfix/README_FILES recipient_delimiter = + relayhost = relocated_maps = hash:/etc/postfix-out/relocated sample_directory = /usr/share/doc/packages/postfix/samples sender_canonical_maps = hash:/etc/postfix-out/sender_canonical sendmail_path = /usr/sbin/sendmail setgid_group = postdrop smtp_bind_address = <IP eth1> smtp_sasl_auth_enable = no smtp_use_tls = no smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU) smtpd_client_restrictions = smtpd_helo_restrictions = smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination smtpd_sasl_auth_enable = no smtpd_sender_restrictions = hash:/etc/postfix-out/access smtpd_use_tls = no strict_8bitmime = no strict_rfc821_envelopes = no syslog_name = mailout transport_maps = hash:/etc/postfix-out/transport unknown_local_recipient_reject_code = 450 virtual_alias_domains = hash:/etc/postfix-out/virtual virtual_alias_maps = hash:/etc/postfix-out/virtual Gruß Michael Peter
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