I'm using Google's Postini replacement as a spam filter before mail gets to my smtp server. I currently have a problem where most emails that get spam trapped by Google disappear when I attempt to have them delivered. Google gives me the ability to reattempt delivery and I have a repeatable case where one example spam always gets bounced by my Postfix, and one always comes through fine.
Here are my smtpd logs from a case where I tried to deliver the 2 spam emails seconds apart; the first one failed and the second one worked: http://pastebin.com/XUYR4ZDe Here's another attempt to deliver the same problematic email, this time with -v verbosity added to just about everything in /etc/postfix/master.cf: http://pastebin.com/ENkgTXz6 AFAICT, everything seems to go normally but then I get: send attr reason = mail forwarding loop for se...@sendu.me.uk and it eventually bounces. My postconf -n: postconf -n address_verify_relayhost = alias_database = hash:/etc/mail/aliases alias_maps = mysql:/etc/postfix/mysql-aliases.cf broken_sasl_auth_clients = yes command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = //usr/lib64/postfix data_directory = /var/lib/postfix debug_peer_level = 1 default_destination_concurrency_limit = 2 home_mailbox = .maildir/ html_directory = /usr/share/doc/postfix-2.5.5/html inet_interfaces = all local_destination_concurrency_limit = 2 local_recipient_maps = $alias_maps $virtual_mailbox_maps unix:passwd.byname local_transport = local mail_owner = postfix mailq_path = /usr/bin/mailq manpage_directory = /usr/share/man mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain mydomain = sendu.me.uk myhostname = 64x2.sendu.me.uk mynetworks_style = host myorigin = $mydomain newaliases_path = /usr/bin/newaliases queue_directory = /var/spool/postfix readme_directory = /usr/share/doc/postfix-2.5.5/readme relayhost = outbound.mailhop.org relocated_maps = mysql:/etc/postfix/mysql-relocated.cf sample_directory = /etc/postfix sendmail_path = /usr/sbin/sendmail setgid_group = postdrop smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_sasl_security_options = smtp_tls_CAfile = /etc/ssl/private/sub.class1.server.ca.pem smtp_tls_CApath = /etc/ssl/certs smtp_tls_cert_file = /etc/ssl/private/sendu.me.uk.crt smtp_tls_key_file = /etc/ssl/private/sendu.me.uk.decrypted.key smtp_tls_loglevel = 0 smtp_tls_session_cache_database = btree:/var/lib/postfix/smtp_tls_session_cache smtp_tls_session_cache_timeout = 3600s smtp_use_tls = yes smtpd_recipient_restrictions = permit_sasl_authenticated, permit_mynetworks, reject_unauth_destination, check_client_access cidr:/etc/postfix/allowed_clients.cidr, reject smtpd_sasl_auth_enable = yes smtpd_sasl_local_domain = smtpd_sasl_security_options = noanonymous smtpd_tls_CAfile = /etc/ssl/private/sub.class1.server.ca.pem smtpd_tls_CApath = /etc/ssl/certs smtpd_tls_ask_ccert = yes smtpd_tls_auth_only = yes smtpd_tls_cert_file = /etc/ssl/private/sendu.me.uk.crt smtpd_tls_key_file = /etc/ssl/private/sendu.me.uk.decrypted.key smtpd_tls_loglevel = 0 smtpd_tls_received_header = yes smtpd_tls_session_cache_database = btree:/var/lib/postfix/smtpd_tls_session_cache smtpd_tls_session_cache_timeout = 3600s smtpd_use_tls = yes tls_random_source = dev:/dev/urandom unknown_local_recipient_reject_code = 550 virtual_alias_maps = mysql:/etc/postfix/mysql-virtual.cf virtual_gid_maps = static:$vmail-gid virtual_mailbox_base = / virtual_mailbox_domains = mail.sendu.me.uk senduphotography.com bala.me.uk virtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-maps.cf virtual_minimum_uid = 1000 virtual_transport = virtual virtual_uid_maps = static:$vmail-uid I'm running Postfix 2.8.4 Any help greatly appreciated. -- View this message in context: http://postfix.1071664.n5.nabble.com/What-is-causing-this-mail-forwarding-loop-bounce-tp62199.html Sent from the Postfix Users mailing list archive at Nabble.com.