weak username/passsword being used to send using smtp-auth?

regards,
Paul
--
Paul Hutchings
Network Administrator, MIRA Ltd.
Tel: 44 (0)24 7635 5378, Fax: 44 (0)24 7635 8378
mailto:[EMAIL PROTECTED] 

> -----Original Message-----
> From: Henry, Christopher M. [mailto:[EMAIL PROTECTED]
> Sent: 19 April 2004 16:13
> To: Exchange Discussions
> Subject: RE: Exchange server used to relay spam
> 
> 
> I do have a bunch of remote users that still connect by dialup...
> And right now only the IT department has VPN access.
>  
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Weatherly, Rob
> Sent: Monday, April 19, 2004 11:10 AM
> To: Exchange Discussions
> Subject: RE: Exchange server used to relay spam
> 
> Do you have user that connect through a VPN or RAS.
> It might be coming from remotely connected home users
> 
> A possibility??
> 
> --------------------------------
> Rob Weatherly
> --------------------------------
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Henry, Christopher M.
> Sent: Monday, April 19, 2004 11:07 AM
> To: Exchange Discussions
> Subject: RE: Exchange server used to relay spam
> 
> That is what one of header look like:
> 
> 
> 
> Received: from antoinette ([200.185.86.250]) by exchange.rcoa.com with
> Microsoft SMTPSVC(5.0.2195.6713);
>        Sun, 18 Apr 2004 16:59:12 -0400
> From: "Jocelyn Dolan-Tarver"<[EMAIL PROTECTED]>
> To: [EMAIL PROTECTED]
> Subject: CIA_L1S & LEV_ITRA is taken about half an hOur before any
> s~exua1l activity begins !
> Mime-Version: 1.0
> Content-Type: text/html; charset=us-ascii
> Content-Transfer-Encoding: 7bit
> Return-Path: [EMAIL PROTECTED]
> Message-ID: <[EMAIL PROTECTED]>
> X-OriginalArrivalTime: 18 Apr 2004 20:59:13.0906 (UTC)
> FILETIME=[01322520:01C42588]
> Date: 18 Apr 2004 16:59:13 -0400
> 
> 
>  
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Rob
> Ellis @ Hook
> Sent: Monday, April 19, 2004 10:11 AM
> To: Exchange Discussions
> Subject: RE: Exchange server used to relay spam
> 
> Where are they connecting to?  Various places, one would assume.
> 
> Virus on the exchange server?
> 
> Virus on a client? 
> 
> 
> 
> Regards,
> 
> 
> Rob Ellis
> User Support Manager
> ntl Group IT
> Ext: (711) 4245
> DDI: 01256 754245
> Mob: 07974 403273
> email: [EMAIL PROTECTED] 
> 
> 
> -----Original Message-----
> From: Henry, Christopher M. [mailto:[EMAIL PROTECTED]
> Sent: 19 April 2004 15:04
> To: Exchange Discussions
> Subject: RE: Exchange server used to relay spam
> 
> I have verified that it is not an open relay. My log files 
> are averaging
> between 2-300 megs daily. And I am pretty sure it is spam based on the
> subjects in the logs.  I have excessive amounts of outbound smtp
> connections from my exchange server (when the office is empty). 
> 
> 
> 
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On 
> Behalf Of Tony
> Hlabse
> Sent: Monday, April 19, 2004 9:52 AM
> To: Exchange Discussions
> Subject: RE: Exchange server used to relay spam
> 
> Have used any utilities to verify that you are not an open 
> rely. Such as
> http://www.ordb.org/submit/
> 
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of
> Henry, Christopher M.
> Sent: Monday, April 19, 2004 9:42 AM
> To: Exchange Discussions
> Subject: Exchange server used to relay spam
> 
> Once again I am completely screwed.
> 
> My exchange server is being used to relay spam, However it is not an
> open relay.  My guess is that there is some Trojan loaded on there
> somewhere.
> Does anyone have any ideas on where I might start to even attempt to
> figure out what is going on?
> 
> 
> Chris
> 
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