Strange Bounce [Was: Undelivered Mail Returned to Sender]

["Martin G. Diehl" <md...@nac.net>]

Why would someone (for example, mailto:nico.prenzel@pn-systeme.de )
signup to an eMail list ... and then require authentication?

Just curious ...

IMO, if you don't want eMail, don't signup to an active eMail list.

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Date: Tue, 31 May 2005 09:05:26 +0200 (CEST)
From: MAILER-DAEMON@szpn0002.pn-systeme.de (Mail Delivery System)
Subject: Undelivered Mail Returned to Sender
To: mdiehl@nac.net
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Subject: Undelivered Mail Returned to Sender
Date: Tue, 31 May 2005 09:05:26 +0200 (CEST)
From: MAILER-DAEMON@szpn0002.pn-systeme.de (Mail Delivery System)
To: mdiehl@nac.net

This is the Postfix program at host szpn0002.

I'm sorry to have to inform you that your message could not be
be delivered to one or more recipients. It's attached below.

For further assistance, please send mail to <postmaster>

If you do so, please include this problem report. You can
delete your own text from the attached returned message.

			The Postfix program

<ni...@pn-systeme.de>: host 192.168.101.1[192.168.101.1] said: 530
     Authentication required (in reply to MAIL FROM command)

Reporting-MTA: dns; szpn0002
X-Postfix-Queue-ID: 04F23A26C6
X-Postfix-Sender: rfc822; mdiehl@nac.net
Arrival-Date: Tue, 31 May 2005 07:59:06 +0200 (CEST)

Final-Recipient: rfc822; nico.prenzel@pn-systeme.de
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; host 192.168.101.1[192.168.101.1] said: 530
     Authentication required (in reply to MAIL FROM command)

Subject: Re: Blogger attacks SURBL
From:    "Martin G. Diehl" <md...@nac.net>
Date:    Tue, 31 May 2005 02:02:20 -0400
To:      Jeff Chan <je...@surbl.org>
CC:      SURBL Discuss <di...@lists.surbl.org>, SpamAssassin Users <us...@spamassassin.apache.org>

Jeff Chan wrote:

 > Pardon the dramatic title, but hopefully it got your attention.
 >
 > This guy's domain got listed by Outblaze, we removed it, and as
 > thanks this guy paints us as irresponsible.  Please help us
 > straighten him out, gently:
 >
 > http://blog.holtz.com/index.php/weblog/comments/blacklisting_blogs/
 >
 > I gave it my shot.
 >
 > Jeff C.
 > --
 > Don't harm innocent bystanders.

The way I read his response is that he stands against
SPAM and in favor of anti SPAM measures ...

*provided* he is not inconvenienced.

-- 
Martin

Re: Strange Bounce [Was: Undelivered Mail Returned to Sender]

[Matt Kettler <mk...@evi-inc.com>]

Martin G. Diehl wrote:
> Why would someone (for example, mailto:nico.prenzel@pn-systeme.de )
> signup to an eMail list ... and then require authentication?
> 
> Just curious ...
> 

Because it's easier to make mistakes than it is to make it work.

My guess is pn-systeme.de recently decided to require authentication for mail
sent by its users. In implementing this they probably screwed up and required it
for mail sent to its users as well.