Hello, I'm currently working on a test box to verify the behavior of some features I'd like to implement on a production mail relay server. Among those are recipient_bcc_maps/sender_bcc_maps (to keep copies of certain emails) and after-queue content_filter (to be able to block certain file types).
These two features alone work as expected/documented, but when used altogether produce the non desired effect of generating 2 identical bccs : the first one seems to occur at first submission and the second one after "resubmission" by the content_filter. I have tried to override the 'recipient_bcc_maps' setting in master.cf but to no avail. Isn't this setting overridable by any means ? or maybe the same goal could be achieved another way ? Please find below the output of 'postconf -n', an extract of my master.cf, my recipient_bcc file and related logs from a test (sending an email via smtp from localhost) : ### postconf -n ### command_directory = /usr/sbin config_directory = /etc/postfix daemon_directory = /usr/sbin data_directory = /var/lib/postfix debug_peer_level = 2 html_directory = no mail_owner = postfix mailq_path = /usr/bin/mailq manpage_directory = /usr/man message_size_limit = 1024000 mydestination = $myhostname, zencore.$mydomain, localhost mydomain = blah.org myhostname = zencore.blah.org mynetworks = 10.36.6.219/32 newaliases_path = /usr/bin/newaliases queue_directory = /var/spool/postfix readme_directory = /usr/doc/postfix-2.6.5/readme recipient_bcc_maps = hash:/etc/postfix/recipient_bcc relay_domains = testdom.fr sample_directory = /etc/postfix sender_bcc_maps = hash:/etc/postfix/sender_bcc sendmail_path = /usr/sbin/sendmail setgid_group = postdrop smtpd_recipient_restrictions = permit_mynetworks check_recipient_access hash:/etc/postfix/denied_recipients reject_unauth_destination smtpd_sender_restrictions = permit_mynetworks reject_unknown_sender_domain reject_non_fqdn_sender check_sender_access hash:/etc/postfix/sender_access permit transport_maps = hash:/etc/postfix/transport unknown_local_recipient_reject_code = 550 ### ### recipient_bcc file ### @testdom.fr root ### ### master.cf ### (snip) smtp inet n - n - - smtpd -o content_filter=filter:dummy -o recipient_bcc_maps= (snip) filter unix - n n - - pipe flags=Rq user=manu argv=/tmp/filter.sh -f ${sender} -- ${recipient} ### ### maillog ### Jun 11 00:46:36 (none) postfix/smtpd[1979]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled Jun 11 00:46:36 (none) postfix/smtpd[1979]: connect from localhost[127.0.0.1] Jun 11 00:47:04 (none) postfix/smtpd[1979]: B3DE110CE3: client=localhost[127.0.0.1] Jun 11 00:47:27 (none) postfix/cleanup[1984]: B3DE110CE3: message-id=<20100610224704.b3de110...@zencore.blah.org> Jun 11 00:47:27 (none) postfix/qmgr[1956]: B3DE110CE3: from=<u...@bonjour.fr>, size=338, nrcpt=2 (queue active) Jun 11 00:47:28 (none) postfix/pickup[1955]: 1DED810CE5: uid=1000 from=<u...@bonjour.fr> Jun 11 00:47:28 (none) postfix/cleanup[1984]: 1DED810CE5: message-id=<20100610224704.b3de110...@zencore.blah.org> Jun 11 00:47:28 (none) postfix/pipe[1985]: B3DE110CE3: to=<m...@testdom.fr>, relay=filter, delay=31, delays=31/0.02/0/0.16, dsn=2.0.0, status=sent (delivered via filter service) Jun 11 00:47:28 (none) postfix/pipe[1985]: B3DE110CE3: to=<r...@zencore.blah.org>, relay=filter, delay=31, delays=31/0.02/0/0.16, dsn=2.0.0, status=sent (delivered via filter service) Jun 11 00:47:28 (none) postfix/qmgr[1956]: B3DE110CE3: removed Jun 11 00:47:28 (none) postfix/qmgr[1956]: 1DED810CE5: from=<u...@bonjour.fr>, size=453, nrcpt=3 (queue active) Jun 11 00:47:28 (none) postfix/local[1991]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled Jun 11 00:47:28 (none) postfix/local[1991]: 1DED810CE5: to=<r...@zencore.blah.org>, relay=local, delay=0.2, delays=0.13/0.04/0/0.03, dsn=2.0.0, status=sent (delivered to mailbox) Jun 11 00:47:28 (none) postfix/local[1991]: 1DED810CE5: to=<r...@zencore.blah.org>, relay=local, delay=0.26, delays=0.13/0.07/0/0.05, dsn=2.0.0, status=sent (delivered to mailbox) Jun 11 00:47:28 (none) postfix/smtp[1992]: connect to 10.36.6.219[10.36.6.219]:25: Connection refused Jun 11 00:47:28 (none) postfix/local[1993]: warning: dict_nis_init: NIS domain name not set - NIS lookups disabled Jun 11 00:47:28 (none) postfix/smtp[1992]: 1DED810CE5: to=<m...@testdom.fr>, relay=none, delay=0.26, delays=0.13/0.11/0.01/0, dsn=4.4.1, status=deferred (connect to 10.36.6.219[10.36.6.219]:25: Connection refused) Jun 11 00:47:29 (none) postfix/smtpd[1979]: disconnect from localhost[127.0.0.1] ### As seen in the logs, same email is delivered twice to root's mailbox (which I can verify by opening it). Note 1 : the 'connection refused' message is due to no real mail server being present at the IP address. This is just for a test and I don't think it's relevant for my problem. Note 2 : for the test, I use a "NOOP" filter shell script which does nothing but resubmitting mails via 'sendmail' command. I observed the same behavior with amavisd-new and smtp "resubmission". Thanks for your help Emmanuel