[THIN] Re: OT: Message Relaying

That's weird? I send this message but it appears on the list as send by
thin-bounce@xxxxxxxxxxxxx 


Dennis

-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] 
Sent: dinsdag 25 november 2003 10:05
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: OT: Message Relaying


I've seen spam mail that got send to other addresses by NDR bouncing.

Read an article about reverse NDR spam:
http://www.langa.com/newsletters/2003/2003-09-18.htm#2

This might be interesting to read:
http://zdnet.com.com/2100-1105_2-5107904.html

-----Original Message-----
From: Roger Riggins [mailto:roger.riggins@xxxxxxxxxx] 
Sent: maandag 24 november 2003 16:24
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: OT: Message Relaying


They may also be NDR's from your Exchange Server attempting to be
delivered to addresses that aren't valid. 

R

-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Jonathan Carr
Sent: Monday, November 24, 2003 8:47 AM
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] Re: OT: Message Relaying


** Before acting on this email, or any attachments, you are advised to
read Alsters Kelley's disclaimer at the end of this email **


Thanks for your advice, Yes NT SP 6 and Exch SP 4.

I have just found an article, Ms Knowledge Base 310669 - "MS02-011: An
Authentication Flaw Could Allow Unauthorized Users to Be Authenticated
on the SMTP Service" if anyone else has suffered a similar issue. You
can follow the links to download a patch, which I'll try this evening.

Rgds,

Jon.... 
-----Original Message-----
From: Dennis van Turnhout [mailto:turnhout@xxxxxxxxxx]
Sent: Monday, November 24, 2003 13:57
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: OT: Message Relaying


I found some tips on www.msexchange.org some time ago.

Is the machine patched to the latest os & exchange level?

-----Original Message-----
From: Jonathan Carr [mailto:Jonathan.Carr@xxxxxxxxxxx] 
Sent: maandag 24 november 2003 13:57
To: 'thin@xxxxxxxxxxxxx'
Subject: [THIN] OT: Message Relaying



** Before acting on this email, or any attachments, you are advised to
read Alsters Kelley's disclaimer at the end of this email **

Hi,

Sorry for the OT, but we run a Exchange 5.5 server that is constantly
used to relay messages. Message Relay is turned OFF but at various times
in the IMS "Outbound messages awaiting delivery" there can be 20-30
e-mails going out with no originator.

I know a firewall would go a long way to putting a stop to this, but
there is no chance of money being spent on IT here. Great! 


Anyone any ideas?

Jon.....





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