Re: [Asrg] Please critique my anti-spam system

On 2005-01-08 19:40:15 +0100, Peter J. Holzer wrote:
> On 2005-01-08 12:36:23 -0500, Seth Breidbart wrote:
> > Currently, such lists (e.g. bugtraq) are a problem for posters.
> But bugtraq does rewrite the envelope sender (it uses ezmlm's VERP
> scheme). The problem with bugtraq is that a lot of people have software
> installed which ignores the envelope sender and replies to the address
> in the From: header instead. 
Speaking of which, I just got this bounce:


On 2005-01-08 11:59:42 -0600, System Administrator wrote:
> Your message
>
>   To:      asrg(_at_)ietf(_dot_)org
>   Subject: Re: [Asrg] Please critique my anti-spam system
>   Sent:    Sat, 8 Jan 2005 11:52:44 -0600
>
> did not reach the following recipient(s):
>
> jmcclure(_at_)coolsavingsinc(_dot_)com on Sat, 8 Jan 2005 11:59:41 -0600
>     The e-mail system was unable to deliver the message, but did not
> report a specific reason.  Check the address and try again.  If it still
> fails, contact your system administrator.The MTS-ID of the original
> message is:c=us;a= ;p=cool savings;l=CSMAIL20501081759CRQ9K8GR
>     MSEXCH:IMS:Cool Savings:ICN:CSMAIL2 0 (00120345) Too Many Hops
[...]

This is kind of rare: It is a correct DSN, but it didn't go to the
envelope address but to the header address. From the Received headers I
gather that 2 Exchange servers and something called "NetIQ MailMarshal"
were involved in the failed delivery of the mail, so probably one of
them discarded the envelope sender and recreated it (erroneously) from
the mail header.

Just a little example, where the mailing list does everything right, but
bounces still go to the wrong address.

        hp


-- 
   _  | Peter J. Holzer    | Je höher der Norden, desto weniger wird
|_|_) | Sysadmin WSR       | überhaupt gesprochen, also auch kein Dialekt.
| |   | hjp(_at_)hjp(_dot_)at         | Hallig Gröde ist fast gänzlich 
dialektfrei.
__/   | http://www.hjp.at/ |   -- Hannes Petersen in desd

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