[EXIM] Struggling with why a message is being rejected.

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Autor: David M Walker
Datum:  
To: Exim Users Mailing List
CC: dchill
Betreff: [EXIM] Struggling with why a message is being rejected.
A customer uses a dial-up ISP (netcom.ca) that allocates a dynamic
IP address and a Netscape 4.61 client to send mail. The mail sender
is actually dchill@???, so that is how his netscape client is
set up. This is a test message to himself. The mail should be
delivered locally on our server for collection by POP3 or IMAP.

Messages from the outside world are working but the user can not send
mail to themselves. Although netcom.ca is in the imrss.org RBL it is
only in warning mode and not in reject mode, so this is not the issue.

I can work round the problem by adding an entry

sender_verify_hosts = "! lsearch;/usr/exim/local/unverified_senders"
where
unverified_senders contains a reference to 'tor-smtp2.netcom.ca'

but this is far too manual and I would like to get it fixed generically
as otherwise I will have to fix this each time a new customer with the
same problem comes along. Also I can't control what changes may take
place within netcom.ca and I am not even sure that this is their
only mail gateway

------------------------------------------------------------------------
Config File Entries
------------------------------------------------------------------------
headers_sender_verify     = true
log_received_sender     = true
sender_unqualified_hosts = "localdomain.0.0/netmask.0.0"
sender_verify_hosts     =  "! lsearch;/usr/exim/local/relays : * "
sender_try_verify     = true
sender_verify_fixup     = true
sender_verify_reject     = true
sender_reject         = "lsearch;/usr/exim/local/badusers"
------------------------------------------------------------------------
lsearch files
------------------------------------------------------------------------
relays:            Contains no reference to anything in these domains
badusers:        Contains no reference to anything in these domains
------------------------------------------------------------------------
Reject log file messages ...
------------------------------------------------------------------------
1999-06-26 16:26:22 tor-smtp2.netcom.ca [207.181.101.101] in RBL list at
mr-out.imrss.org (warning mode)
---
1999-06-26 16:26:22 warning: temporarily unable to resolve sender
address: accepted unverified <dchill@???> H=tor-smtp2.netcom.ca
[207.181.101.101]
---
1999-06-26 16:26:22 1 RCPT from tor-smtp2.netcom.ca [207.181.101.101] (1
accepted)
Recipients: m235.dchill@???
---
1999-06-26 16:26:22 10xvHa-0006sB-00 rejected from tor-smtp2.netcom.ca
[207.181.101.101]: can't currently verify any sender in message headers
(please try again later): return path is <dchill@???>
Recipients: m235.dchill@???
P Received: from tor-smtp2.netcom.ca ([207.181.101.101])
    by monza.datamgmt.net with esmtp (Exim 3.02 #2)
    id 10xvHa-0006sB-00
    for m235.dchill@???; Sat, 26 Jun 1999 16:26:22 +0000
P Received: from dungar.com (kit-on4-27.netcom.ca [209.146.136.27])
    by tor-smtp2.netcom.ca (8.8.7-s-4/8.8.7) with ESMTP id TAA20427
    for <dchill@???>; Thu, 24 Jun 1999 19:54:47 -0400 (EDT)
I Message-ID: <3772C5E2.E854554F@???>
  Date: Thu, 24 Jun 1999 19:57:22 -0400
F From: Duncan Hill <dchill@???>
  X-Mailer: Mozilla 4.61 [en] (Win95; U)
  X-Accept-Language: en
  MIME-Version: 1.0
T To: dchill@???
  Subject: test6
  Content-Type: text/plain; charset=us-ascii
  Content-Transfer-Encoding: 7bit
  X-RBL-Warning: (mr-out.imrss.org) Mail Refused. See
http://www.imrss.org/error.html 
------------------------------------------------------------------------------


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