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08.31.2008 at 06:08PM PDT, ID: 23692704
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8.8

NDR Spam Attack

Asked by TracyFazackerley in Spam Black Holes, SBS Small Business Server, Email Anti-Virus

Tags:

Hi
We have increasingly been bombarded with NDR spam email through 2 of our user email addresses on our domain.
We run Windows Server 2003 for SBS and also the Trend Micro Worry free Business Security sever/client software. Our email is directly sent to our server and I have checked that it is not an open relay.
I have had a look around EE and found many ideas to try to stop this spam attack but after applying just about everything I read, we are still getting these NDR spam emails. They all seem to be trying to send email to Russian sites of numerous IP addresses.
The 2 users getting these seem to have been picked up while travelling in the US. None of the other 13 users are receiving the email. It is particularly frustrating when the manager is getting attacked on his Blackberry at all hours of the day! So hope somebody has a new idea to combat these.
Cheers Tracy

Below is a sample of the NDR's received. (Recipient email name deleted)
From: System Administrator
Sent: Saturday, 30 August 2008 9:37 PM
To: <our Active Directory recipient>
Subject: Undeliverable: ÂÀØÀ ÐÅÊËÀÌÀ ÌÎÆÅÒ ÁÛÒÜ ÇÄEÑÜ

Your message did not reach some or all of the intended recipients.

      Subject:      (   " +", E!,
      Sent:      30/08/2008 9:05 PM

The following recipient(s) could not be reached:

      Kulikov@rbscorp.ru on 30/08/2008 9:35 PM
            The e-mail account does not exist at the organization this message was sent to.  Check the e-mail address, or contact the recipient directly to find out the correct address.
            server3.rbscorp.ru
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[+][-]08.31.2008 at 06:35PM PDT, ID: 22357043

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About this solution

Zones: Spam Black Holes, SBS Small Business Server, Email Anti-Virus
Tags: NDR attacks
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Solution Provided By: TechSoEasy
Participating Experts: 2
Solution Grade: A
 
 
[+][-]08.31.2008 at 06:47PM PDT, ID: 22357081

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[+][-]08.31.2008 at 07:20PM PDT, ID: 22357172

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[+][-]09.01.2008 at 12:00AM PDT, ID: 22357940

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[+][-]09.01.2008 at 12:35AM PDT, ID: 22358059

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