Hallo, wie kann ich postfix dazu zwingen, gleich einen Fehler 550 zu liefern und nicht x-fach einen Fehler 450 ... bei mir liefert fetchmail die Mails an den postfix, und sehr oft wiederholen sich z.B. "fetchmail: SMTP error: 450 4.1.8 : Sender address rejected: Domain not found" /etc/postfix/main.cf hat diesen Inhalt (reduziert um die Kommentare soft_bounce = no queue_directory = /var/spool/postfix command_directory = /usr/sbin daemon_directory = /usr/libexec/postfix data_directory = /var/lib/postfix mail_owner = postfix myhostname = filter.mail mydomain = mail inet_interfaces = $myhostname, localhost inet_protocols = all mydestination = $myhostname, lx.local, localhost, localhost.localdomain unknown_local_recipient_reject_code = 550 mynetworks_style = subnet mynetworks = 192.168.0.0/24, 127.0.0.0/8 relayhost = [storage.mail]:25 alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases recipient_delimiter = + smtpd_banner = $myhostname ESMTP $mail_name ($mail_version) debug_peer_level = 2 debugger_command = PATH=/bin:/usr/bin:/usr/local/bin:/usr/X11R6/bin ddd $daemon_directory/$process_name $process_id & sleep 5 sendmail_path = /usr/sbin/sendmail.postfix newaliases_path = /usr/bin/newaliases.postfix mailq_path = /usr/bin/mailq.postfix setgid_group = postdrop html_directory = no manpage_directory = /usr/share/man sample_directory = /usr/share/doc/postfix-2.6.6/samples # latest CentOS 6 release readme_directory = /usr/share/doc/postfix-2.6.6/README_FILES #strict_8bitmime = yes strict_7bit_headers = yes #strict_8bitmime_body = yes smtpd_delay_reject = yes smtpd_helo_required = yes smtpd_helo_restrictions = permit_mynetworks, reject_unknown_hostname, reject_non_fqdn_helo_hostname smtpd_client_restrictions = permit_mynetworks, reject smtpd_etrn_restrictions = permit_mynetworks, reject smtpd_sender_restrictions = check_sender_mx_access cidr:/etc/postfix/drop.cidr, check_sender_ns_access cidr:/etc/postfix/drop.cidr, reject_non_fqdn_sender, reject_unknown_sender_domain smtpd_recipient_restrictions = permit_mynetworks, reject_non_fqdn_recipient, reject_unauth_destination, reject_unknown_recipient_domain, reject_unknown_sender_domain, reject # smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, defer_unauth_destination smtpd_discard_ehlo_keywords = silent-discard, dsn smtpd_reject_unlisted_sender = yes smtpd_reject_unlisted_recipient = yes smtp_bind_address = 192.168.241.222 smtp_bind_address6 = 2001:15c0:65ff:87d4::4d:4149:4c32 smtp_helo_name = lxwaldivm-005.waldinet.home smtp_helo_timeout = 45 smtp_host_lookup = native, dns body_checks = pcre:/etc/postfix/body_chks.pcre body_checks_size_limit = 1048576 header_checks = regexp:/etc/postfix/hdr_chks.regex, pcre:/etc/postfix/hdr_chks.pcre header_checks_size_limit = 131072 message_reject_characters = \0 message_size_limit = 26214400 mime_header_checks = $header_checks nested_header_checks = smtp_header_checks = pcre:/etc/postfix/smtp_hdr_chks.pcre smtp_mime_header_checks = $smtp_header_checks smtp_nested_header_checks = unknown_address_reject_code = 554 unknown_client_reject_code = 550 unknown_hostname_reject_code = 554 unverified_recipient_reject_code = 554 unverified_sender_reject_code = 554 content_filter = clamav-scan:[127.0.0.1]:10025 postconf | grep "55" liefert access_map_reject_code = 554 maps_rbl_reject_code = 554 multi_recipient_bounce_reject_code = 550 reject_code = 554 relay_domains_reject_code = 554 unknown_address_reject_code = 554 unknown_client_reject_code = 550 unknown_hostname_reject_code = 554 unknown_local_recipient_reject_code = 550 unknown_relay_recipient_reject_code = 550 unknown_virtual_alias_reject_code = 550 unknown_virtual_mailbox_reject_code = 550 unverified_recipient_reject_code = 554 unverified_sender_reject_code = 554 postconf | grep "450" liefert access_map_defer_code = 450 defer_code = 450 plaintext_reject_code = 450 unverified_recipient_defer_code = 450 unverified_sender_defer_code = 450 /etc/postfix/master.cf hat das extra dabei wegen clamav clamav-scan unix - - n - 16 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes -o disable_dns_lookups=yes 127.0.0.1:10026 inet n - n - 16 smtpd -o content_filter= -o local_recipient_maps= -o receive_override_options=no_unknown_recipient_checks,no_header_body_checks -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_style=host -o smtpd_authorized_xforward_hosts=127.0.0.1 es funktioniert alles, ich will nur einen 5xx Fehler statt des 4xx Fehlers erwzingen; im fetchmailrc steht folgendes defaults auth password envelope "X-Envelope-To:" timeout 45 no keep no rewrite smtphost filter.mail sslproto "TLS1" sslcertfile "/etc/pki/tls/certs/ca-bundle.crt" ssl dropstatus limit 26213888 sucht man nach der komischen E-mail adresse im maillog, dann kommt das zum Vorschein ... Mar 22 11:39:46 filter postfix/smtpd[16115]: connect from filter.mail[192.168.0.1] Mar 22 11:39:49 filter postfix/smtpd[16115]: warning: Unable to look up MX host for christmas-gift2.cc: Host not found, try again Mar 22 11:39:53 filter postfix/smtpd[16115]: NOQUEUE: reject: RCPT from filter.mail[192.168.0.1]: 450 4.1.8 : Sender address rejected: Domain not found; from= to= proto=ESMTP helo= Mar 22 11:39:53 lxwaldivm-005 postfix/smtpd[16115]: disconnect from filter.mail[192.168.0.1] wieso ist die Tatsache, daß er den MX Host nicht findet nur ein warning und kein error? Danke und Grüße aus Österreich, Walter