I my postmaster mailbox I get a lot of trash from those of
our customers that use an MTA which identifies itself as:
Internet Mail Service (5.5.2232.9) and
Internet Mail Service (5.5.2448.0).

That really a pain.

How can I prevent those messages from ending up as double
bounces in my postmaster mailbox? They are totally useless,
even for spammer tracing, because the received lines are
missing.

Can I make qmail block them?

I think the blocking criteria might be:
If return-path is empty and from is [EMAIL PROTECTED], drop it.

What would you do / what are you doing?
Do you know the product so I can tell the customers how to fix
their systems?

Here is a typical message that ends up as a double bounce. In this
case the bogus sender is a spammer. It could also originate from
a non-spammer, and sometimes it is a positive delivery notification
like "Your message was delivered to the following recipeint(s):":

Return-Path: <>
Received: (qmail 12368 invoked from network); 17 Jun 1999 07:10:22 -0000
Received: from foulum01.agrsci.dk (130.226.240.22)
  by mail.net.uni-c.dk with SMTP; 17 Jun 1999 07:10:22 -0000
Received: by foulum01.agrsci.dk with Internet Mail Service (5.5.2232.9)    
        id <NBKR28MG>; Thu, 17 Jun 1999 09:09:14 +0200                      
Message-ID: <[EMAIL PROTECTED]>   
From: System Administrator <[EMAIL PROTECTED]>                           
To: [EMAIL PROTECTED]                                                     
Subject: Undeliverable: "How to Pay Zero Taxes" Selling in stores for $30,Free!        
                                           axwdm       
Date: Thu, 17 Jun 1999 09:09:13 +0200                                       
MIME-Version: 1.0                                                              
X-Mailer: Internet Mail Service (5.5.2232.9)                               
X-MS-Embedded-Report:                                                          
Content-Type: multipart/mixed;                                              
        boundary="----_=_NextPart_000_01BEB890.4E28FAE4"                    

This message is in MIME format. Since your mail reader does not understand  
this format, some or all of this message may not be legible.                

------_=_NextPart_000_01BEB890.4E28FAE4                                     
Content-Type: text/plain                                                       

Your message                                                                   

  To:      [EMAIL PROTECTED]                                                    
  Subject: "How to Pay Zero Taxes" Selling in stores for $30,Free!          
axwdm                                                                          
  Sent:    Thu, 17 Jun 1999 09:06:55 +0200                                  

did not reach the following recipient(s):                                      

[EMAIL PROTECTED] on Thu, 17 Jun 1999 09:09:11 +0200                        
    The recipient name is not recognized                                   
    MSEXCH:IMS:Danmarks JordbrugsForskning:Foulum:FOULUM01 0 (000C05A6)     
Unknown Recipient                                                             

------_=_NextPart_000_01BEB890.4E28FAE4                                     
Content-Type: message/rfc822                                                   
Content-Location: ATT-0-223AA4ED5324D311997600805F8BB749                    

Message-ID: <[EMAIL PROTECTED]>                         
From: [EMAIL PROTECTED]                                                
To: [EMAIL PROTECTED]                                                              
Subject: "How to Pay Zero Taxes" Selling in stores for $30,Free!            
                                                 axwdm                      
Date: Thu, 17 Jun 1999 09:06:55 +0200                                       
MIME-Version: 1.0                                                              
X-Mailer: Internet Mail Service (5.5.2232.9)                                
X-MS-Embedded-Report:                                                          
Content-Type: text/plain;                                                  
        charset="iso-8859-1"                                                   
Content-Transfer-Encoding: quoted-printable                                 

[ body deleted by me ]

------_=_NextPart_000_01BEB890.4E28FAE4--


-- 
Med venlig hilsen / Regards 
Netdriftgruppen / Network Management Group
UNI-C          

Tlf./Phone   +45 35 87 89 41        Mail:  UNI-C                                
Fax.         +45 35 87 89 90               Bygning 304
E-mail: [EMAIL PROTECTED]       DK-2800 Lyngby

Reply via email to