[Mailman-Users] "bounce" message from misconfigured mail host(s) [postoffice at xizor.is.scarlet.be: Returned mail: User unknown]

Hannah Schroeter hannah at schlund.de
Wed Oct 26 17:48:45 CEST 2005


I'm getting "bounces" like this from a misconfigured site which bounces
to the header From instead of the envelope from.

Perhaps that recipient should just be removed from the list?

The "bounce" has envelope from
  jean.jacques.blanckaert at tiscali.be
  (should be empty!)
header from
  postoffice at xizor.is.scarlet.be
and stems from
  [] (helo=xizor.is.scarlet.be)
  (helo matches the reverse-mapping of the IP, double reverse check

Its received lines seem to be echoed from the original mail (bad!).

The upmost received lines from the original mail are:
  Received: from (smtp-vbr10.xs4all.nl [])
        by fundy.is.scarlet.be  with ESMTP id j9NJNaoW011305
        for <jjbl3213 at tiscali.be>;
        Sun, 23 Oct 2005 21:23:36 +0200
  Received: from bag.python.org (bag.python.org [])
        by smtp-vbr10.xs4all.nl (8.13.3/8.13.3) with ESMTP id j9NJNV5u040983
        for <jjbl3213 at tiscali.be>; Sun, 23 Oct 2005 21:23:36 +0200 (CEST)
        (envelope-from mailman-users-bounces+jjbl3213=tiscali.be at python.org)
  Received: from bag.python.org (bag [])
        by bag.python.org (Postfix) with ESMTP id E0E2B1E411D
        for <jjbl3213 at tiscali.be>; Sun, 23 Oct 2005 21:23:14 +0200 (CEST)

So something at or after smtp-vbr10.xs4all.nl or fundy.is.scarlet.be is
heavily misconfigured. Please fix this (CC is set to people who could be
responsible): DSNs should have an empty (null) envelope sender and
should be sent *only* to the envelope sender of the original message,
the header (From/Reply-To) should never be evaluated for creating

Kind regards,


----- Forwarded message from postoffice at xizor.is.scarlet.be -----

From: postoffice at xizor.is.scarlet.be
To: Hannah Schroeter <hannah at schlund.de>
Date: Wed, 26 Oct 2005 17:38:30 +0200
Subject: Returned mail: User unknown

The original message was received at 2005-10-26 17:34:24 +0200
from postoffice.local []

   ----- The following addresses had permanent fatal errors -----
<jean.jacques.blanckaert at tiscali.be>

   -----Transcript of session follows -----
... while talking to postoffice.local.:
>>> RCPT To:<jean.jacques.blanckaert at tiscali.be>
<<< 550 5.1.1 unknown or illegal alias: jean.jacques.blanckaert at tiscali.be
550 <jean.jacques.blanckaert at tiscali.be>... User unknown

Reporting-MTA: dns; postoffice.local
Received-From-MTA: DNS; postoffice.local
Arrival-Date: 2005-10-26 17:34:24 +0200

Final-Recipient: RFC822; jean.jacques.blanckaert at tiscali.be
Action: failed
Status: 5.1.1
Remote-MTA: DNS; postoffice.local
Diagnostic-Code: SMTP;550 5.1.1 unknown or illegal alias: jean.jacques.blanckaert at tiscali.be
Last-Attempt-Date: 2005-10-26 17:34:24 +0200

From: Hannah Schroeter <hannah at schlund.de>
To: mailman-users at python.org
Date: Sun, 23 Oct 2005 21:23:00 +0200
Subject: Re: [Mailman-Users] Disable Subscriptions/Unsubscriptions


On Sun, Oct 23, 2005 at 09:11:00PM +0200, Bernd Petrovitsch wrote:
>Hi all!

>Is there a possibility to disable the member subscription/unsubscription
>through the web interface?
>The list-members are added and removed with a script which is fed from a
>DB so there is no point in self-subscription.

I don't know whether there's a specific knob in mailman itself, but
you could either just not publish the list info address at all, or
deny access to it, using appropriate web server configuration (access
control or rewrite rules to show explanatory text instead).

>	Bernd

Kind regards,

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----- End forwarded message -----

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