routing all mails to customized processor, without individual mail directory
in [Postfix]
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From: "Zhou, Yan" on 31 Jul 2010 09:45 Hi there, We are intergrating Postfix with a J2EE backend, where all user accounts and configuration are in J2EE layer with database. Because of this architecture, we do not want to having to maintain individual user mail directory, or user account. In other words, if we add a new email address or new user, nothing changes on Postfix server. To that end, I wish to let Postfix delegate all email processing to my Java program that talks to the J2EE backend. We want to process all mails ourselves. I have tried content filter and transport relay, but run into the same problem. Since postfix does not know it is a valid email address, it rejects the emails before my Java program gets it. Reading from the log, it is the SMTPD that rejects it, so it is before Queue Mgr. Here is the error. Does not look like relay is taking place, it is still going through local delivery agent. Any suggestions as to what went wrong? Jul 31 13:34:53 mustang postfix/smtpd[18630]: NOQUEUE: reject: RCPT from unknown[172.18.138.12]: 550 5.1.1 <address(a)mydomain>: Recipient address rejected: User unknown in local recipient table; The following are my configuration. In main.cf: relay_domains = <my domain, this is the local domain> transport_maps = hash:/etc/postfix/transport In /etc/postfix/transport <my domain> connector In master.cf connector unix - n n - - pipe flags= user=myuser argv=/usr/local/bin/runprocessor -f ${sender} -- ${recipient} where runprocessor is a script that calls Java program. Thanks, Yan Confidentiality Notice: The information contained in this electronic transmission is confidential and may be legally privileged. It is intended only for the addressee(s) named above. If you are not an intended recipient, be aware that any disclosure, copying, distribution or use of the information contained in this transmission is prohibited and may be unlawful. If you have received this transmission in error, please notify us by telephone (513) 229-5500 or by email (postmaster(a)MedPlus.com). After replying, please erase it from your computer system.
From: "Zhou, Yan" on 31 Jul 2010 09:58 The error is gone after I set local_recipient_maps <http://www.postfix.org/postconf.5.html#local_recipient_maps> = But relay is not happening, it still goes to local delivery agent. Cannot find why ... Jul 31 13:52:07 mustang postfix/local[18709]: 512DC150238: to=<address(a)mydomain >, relay=local, delay=0.16, delays=0.14/0.01/0/0.01, dsn=5.1.1, status=bounced (unknown user: "<user>") From: owner-postfix-users(a)postfix.org [mailto:owner-postfix-users(a)postfix.org] On Behalf Of Zhou, Yan Sent: Saturday, July 31, 2010 9:45 AM To: postfix-users(a)postfix.org Subject: routing all mails to customized processor, without individual mail directory Hi there, We are intergrating Postfix with a J2EE backend, where all user accounts and configuration are in J2EE layer with database. Because of this architecture, we do not want to having to maintain individual user mail directory, or user account. In other words, if we add a new email address or new user, nothing changes on Postfix server. To that end, I wish to let Postfix delegate all email processing to my Java program that talks to the J2EE backend. We want to process all mails ourselves. I have tried content filter and transport relay, but run into the same problem. Since postfix does not know it is a valid email address, it rejects the emails before my Java program gets it. Reading from the log, it is the SMTPD that rejects it, so it is before Queue Mgr. Here is the error. Does not look like relay is taking place, it is still going through local delivery agent. Any suggestions as to what went wrong? Jul 31 13:34:53 mustang postfix/smtpd[18630]: NOQUEUE: reject: RCPT from unknown[172.18.138.12]: 550 5.1.1 <address(a)mydomain>: Recipient address rejected: User unknown in local recipient table; The following are my configuration. In main.cf: relay_domains = <my domain, this is the local domain> transport_maps = hash:/etc/postfix/transport In /etc/postfix/transport <my domain> connector In master.cf connector unix - n n - - pipe flags= user=myuser argv=/usr/local/bin/runprocessor -f ${sender} -- ${recipient} where runprocessor is a script that calls Java program. Thanks, Yan Confidentiality Notice: The information contained in this electronic transmission is confidential and may be legally privileged. It is intended only for the addressee(s) named above. If you are not an intended recipient, be aware that any disclosure, copying, distribution or use of the information contained in this transmission is prohibited and may be unlawful. If you have received this transmission in error, please notify us by telephone (513) 229-5500 or by email (postmaster(a)MedPlus.com). After replying, please erase it from your computer system. Confidentiality Notice: The information contained in this electronic transmission is confidential and may be legally privileged. It is intended only for the addressee(s) named above. If you are not an intended recipient, be aware that any disclosure, copying, distribution or use of the information contained in this transmission is prohibited and may be unlawful. If you have received this transmission in error, please notify us by telephone (513) 229-5500 or by email (postmaster(a)MedPlus.com). After replying, please erase it from your computer system.
From: Magnus =?iso-8859-1?Q?B=E4ck?= on 31 Jul 2010 11:21 On Saturday, July 31, 2010 at 15:58 CEST, "Zhou, Yan" <yzhou(a)medplus.com> wrote: > The error is gone after I set local_recipient_maps > <http://www.postfix.org/postconf.5.html#local_recipient_maps> = Don't do that. Postfix must know which recipient addresses are valid. Luckily Postfix supports a number of lookup mechanisms for determining which recipients that are valid. > But relay is not happening, it still goes to local delivery agent. > Cannot find why ... > > Jul 31 13:52:07 mustang postfix/local[18709]: 512DC150238: > to=<address(a)mydomain >, relay=local, delay=0.16, > delays=0.14/0.01/0/0.01, dsn=5.1.1, status=bounced (unknown user: > "<user>") The transport table lookup is not not working properly. What's the output of postmap -q example.com hash:/etc/postfix/transport where example.com is your domain? [...] > In main.cf: > > relay_domains = <my domain, this is the local domain> Yes, but you're obviously also listing the domain in mydestination (which is why it's routed to local(8)). Pick one address class for the domains and stick to it. > transport_maps = hash:/etc/postfix/transport > > In /etc/postfix/transport > > <my domain> connector Don't know if the transport name needs to be followed by a colon, but that's at least what transport(5) suggests. So: example.com connector: [...] -- Magnus B�ck magnus(a)dsek.lth.se
From: "Zhou, Yan" on 31 Jul 2010 13:16 Thanks to all, having "connector:" did fix the problem! I also made a couple of other configuration changes, but these are minor. Yan Confidentiality Notice: The information contained in this electronic transmission is confidential and may be legally privileged. It is intended only for the addressee(s) named above. If you are not an intended recipient, be aware that any disclosure, copying, distribution or use of the information contained in this transmission is prohibited and may be unlawful. If you have received this transmission in error, please notify us by telephone (513) 229-5500 or by email (postmaster(a)MedPlus.com). After replying, please erase it from your computer system.
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