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List:       qmail
Subject:    ANSWER : fastforward aliases causing mail loop?
From:       Chris Barnhart <mlist () dIDEAS ! com>
Date:       2002-04-29 22:25:12
[Download RAW message or body]

Qmail users:

Here is the answer to a problem with (my) fastforward (/qmail 
configuration) that caused (for eons!) a message bound for an aliased 
address to loop and bounce.

When a message came to AliasedUser@my_domain.com fastforward rewrote the 
address to

AliasedUser@my_host_name.my_domain.com

Since my_host_name.my_domain.com was NOT listed in qmail/control/locals - 
the message was handed off for remote delivery.  This caused the loop - as 
I guess the 'remotely delivered' message just went around some sort of 
qmail queue.

I seem to have correct my problem by adding my_host_name.my_domain.com to 
the locals file, however its not clear that this is actually the 'correct' 
solution.  I'm not sure why fastforward is adding the hostname to email 
address.  I assume it gets it from file qmail/control/me and/or defaulthost.

Chris



>Date: Thu, 21 Mar 2002 19:45:44 -0500
>To: qmail@list.cr.yp.to
>From: Chris Barnhart <mlist-qmail@dIDEAS.com>
>Subject: fastforward aliases causing mail loop?
>
>QMail experts:
>
>When mailing to an email address that is aliased by the fastforward 
>program, the message bounces with an error indicating a mail loop.
>
>In addition to qmail, I'm running qmail-scanner, fastforward, and 
>spamassassin.
>
>fastforward worked well for a year+, until around the time I installed 
>spamassassin (I didn't discover the aliases problems for over 1 
>month).  However, as far as I can tell, spamassassin only enters into the 
>mail path via the .qmail file.  I've tried creating a null .qmail file for 
>both the ~alias and the real user name for the aliased address.  No luck.
>
>It could also be that I have an illegal line in my /etc/aliases file - as 
>sometimes I can get aliasing to work.  I've tried creating /etc/aliases 
>with one entry, mailing appears to work, but adding entries one at a time 
>seems to break it - but I've not figured the patten.
>
>Any ideas as to why messages are loop - and how to correct it?
>
>Thank you in advance.
>Chris Barnhart
>------------------------------
>
>Here are the .qmail* files for ~alias.
>
>[root@10208 alias]# cat .qmail-default
>| fastforward  -p /etc/aliases.cdb
>
>[root@10208 alias]# cat .qmail
>|/usr/bin/perl /usr/bin/spamassassin
>
>A portion of the bounced message follows.  The indented receipt was 
>may01@dideas.com
>
>
>------------------------------------------------------------------------------
>X-Qmail-Scanner-Mail-From:  via dideas.com
>Date: 21 Mar 2002 23:09:07 -0000
>From: MAILER-DAEMON@qmail.dideas.com
>To: ceb@ai.mit.edu
>Subject: failure notice
>Content-Type: text
>X-UIDL: 4B["!m\b"!N-&!!O[Y"!
>
>Hi. This is the qmail-send program at qmail.dideas.com.
>I'm afraid I wasn't able to deliver your message to the following addresses.
>This is a permanent error; I've given up. Sorry it didn't work out.
>
><ceb@qmail.dideas.com>:
>24.218.251.173 failed after I sent the message.
>Remote host said: 554 too many hops, this message is looping (#5.4.6)
>
>--- Below this line is a copy of the message.
>
>Return-Path: <ceb@ai.mit.edu>
>Received: (qmail 2419 invoked by uid 510); 21 Mar 2002 23:08:37 -0000
>Received: from ceb@ai.mit.edu by dideas.com with qmail-scanner-0.96 (. 
>Clean. Processed in 0.449074 secs); 21 Mar 2002 23:08:37 -0000
>X-Qmail-Scanner-Mail-From: ceb@ai.mit.edu via dideas.com
>Received: from webferret.ne.client2.attbi.com (HELO qmail.dideas.com) 
>(24.218.251.173)
>   by 10208.dideas.com with SMTP; 21 Mar 2002 23:08:36 -0000
>
>.... DELETED....
>
>Received: (qmail 2035 invoked by uid 510); 21 Mar 2002 22:54:18 -0000
>Received: from ceb@ai.mit.edu by dideas.com with qmail-scanner-0.96 (. 
>Clean. Processed in 0.062246 secs); 21 Mar 2002 22:54:18 -0000
>Received: from webferret.ne.client2.attbi.com (HELO qmail.dideas.com) 
>(24.218.251.173)
>   by 10208.dideas.com with SMTP; 21 Mar 2002 22:54:18 -0000
>Received: (qmail 2018 invoked by uid 510); 21 Mar 2002 22:53:49 -0000
>Received: from ceb@ai.mit.edu by dideas.com with qmail-scanner-0.96 (. 
>Clean. Processed in 0.053442 secs); 21 Mar 2002 22:53:49 -0000
>
>Delivered-To: may01@dideas.com
>Received: (qmail 2009 invoked by uid 510); 21 Mar 2002 22:53:48 -0000
>Received: from ceb@ai.mit.edu by dideas.com with qmail-scanner-0.96 (. 
>Clean. Processed in 0.050307 secs); 21 Mar 2002 22:53:48 -0000
>Received: from ai.mit.edu (HELO life.ai.mit.edu) (128.52.32.80)
>   by 10208.dideas.com with SMTP; 21 Mar 2002 22:53:48 -0000
>Received: from horsepower.ai.mit.edu (horsepower [128.52.37.26])
>         by life.ai.mit.edu (8.9.3/8.9.3/AI2.13/ai.master.life:2.23) with 
> ESMTP id RAA17648
>         for <may01@dideas.com>; Thu, 21 Mar 2002 17:53:23 -0500 (EST)
>From: Chris Barnhart <ceb@ai.mit.edu>
>Received: (from ceb@localhost)
>           by horsepower.ai.mit.edu (8.9.1/8.8.4AI/ai.client:1.5)
>           id RAA16304 for may01@dideas.com; Thu, 21 Mar 2002 17:53:23 
> -0500 (EST)
>Date: Thu, 21 Mar 2002 17:53:23 -0500 (EST)
>Message-Id: <200203212253.RAA16304@horsepower.ai.mit.edu>
>To: may01@dideas.com
>Subject: test9
>
>test9

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