I am using the sender_verify options with fairly good success, at keeping
out spam and other crap from email that does not properly identify itself.
However, I have one or two cases where bounces are being returned, and my
machine rejects them. Their machines are quite persistent though, and keep
trying over and over.
For example, from the exim_rejectlog
------------------------------------------------------------------------------
1998-07-31 04:09:00 0z26Uz-0003uT-00 rejected from (lhl.gundluth.org)
[204.69.145.17]: no valid sender in message headers: return path is <>
Recipients: pjalert-admin@???
P Received: from (lhl.gundluth.org) [204.69.145.17]
by dispatch.mail-list.com with smtp (Exim 1.82 #7)
id 0z26Uz-0003uT-00; Fri, 31 Jul 1998 04:08:58 +0000
X-Nvlenv-01Date-Posted: 29-Jul-1998 22:50:52 -0500; at lhlnwc1.gundluth
Mime-Version: 1.0
Content-Type: multipart/mixed;
boundary="PartBoundary_Wed_Jul_29_22:51:30__3897960"
Date: 29 Jul 98 22:50:52 CDT
T To: pjalert-admin@???
F From: mailer-daemon@???
I Message-Id: <"9FEABF3581A2357C@???"@-SMF->
Subject: Returned mail: Non delivery of message.
------------------------------------------------------------------------------
In my configuration file, I have
sender_verify = true
sender_verify_fixup = true
and no entry for sender_verify_reject, defaulting to the value of true.
I have this problem with both Exim 1.82 and Exim 1.90
I can ping all the gundluth.org machines listed.
First of all, I would have kinda expected <> to be a valid envelope sender
address, for these purposes.
Second, I would have thought that the sender_verify_fixup would have
allowed a valid From Header, which based on the log, seems to be
mailer-daemon@???.
Third, in reading chapter 40.2, it seems that this persistent domain should
be stuck in some sort of database, and if repeated tries are made, then a
550 return code is sent back. That may be happening, although this
particular machine is trying to return this bounce every minute or so.
Why is this message being rejected, if I have the sender_verify_fixup set on.
Thanks for any feedback.
mark
mark david mcCreary
Internet Tools, Inc. 1436 West Gray #438
mdm@??? Houston, Texas 77019
http://www.internet-tools.com 713.627.9600
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