Solved

HELP... I need to find the internal IP address of an outlook client in Exchange 2003

Posted on 2006-10-24
9
211 Views
Last Modified: 2010-03-06
This is the issue... I may have an outlook client that is sending spam. How can I find out the clients IP that is sending the spam to the exchange server.
I have tried logging and it isn't descrptive enough. The spam has a blank from address so I can't track it that way.

0
Comment
Question by:dheffley
  • 5
  • 4
9 Comments
 
LVL 31

Expert Comment

by:LeeDerbyshire
ID: 17795775
If it is coming from Outlook, then I am sure that the outgoing spam will actually have the correct sender's name, since Exchange always uses the default SMTP address as the sender.  You can probably find the suspected items listed in your outgoing SMTP queues.

Of course, the spam may not be coming from Outlook at all (although that was where the client got infected) - it may be coming from a stand-alone SMTP server installed on the workstation by a trojan.

Are you sure that the spam is actually going through the Exchange server in some way?
0
 

Author Comment

by:dheffley
ID: 17795921
I am fairly sure that it is a client due to the fact that I pay for an external mail relay service and the only machine that has the login information to the service is the exchange server. The Service provides me the originating ip of the email and it is my exchange server.
0
 

Author Comment

by:dheffley
ID: 17795943
I was just thinking after my last post that if a virus gets on a pc; do you think that it could sniff and find an exchange server and utilize it with its own SMTP engine but uses exchange for email routing and delivery?
0
 
LVL 31

Expert Comment

by:LeeDerbyshire
ID: 17795976
Are you sure that it is spam that is originating from your server?  The blank From address might indicate that the mails are simply NDRs sent back out by your server in response to incoming (but badly addressed) spam attempts.  I think it's rare to see spam with no From address, whereas NDRs need a blank From address to avoid creating mail loops.
0
Is Your AD Toolbox Looking More Like a Toybox?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

 

Author Comment

by:dheffley
ID: 17796180
That is a possibility... Does exchange send a NDR by default?
0
 
LVL 31

Accepted Solution

by:
LeeDerbyshire earned 250 total points
ID: 17796258
Yes, but you can turn them off in ESM.  Global settings, Internet Message Formats, Default, Advanced, Allow Non-delivery Reports.
0
 

Author Comment

by:dheffley
ID: 17796553
I will check it out and let you know...
0
 

Author Comment

by:dheffley
ID: 17797098
Thanks a million... It was the exchange server sending the NDRs that was causing the issue.
0
 
LVL 31

Expert Comment

by:LeeDerbyshire
ID: 17797386
You're welcome.  It's a very common problem, mistaking NDRs for outgoing spam.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article lists the top 5 free OST to PST Converter Tools. These tools save a lot of time for users when they want to convert OST to PST after their exchange server is no longer available or some other critical issue with exchange server or impor…
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
In this video we show how to create a User Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >> Mailb…
The basic steps you have just learned will be implemented in this video. The basic steps are shown to configure an Exchange DAG in a live working Exchange Server Environment and manage the same (Exchange Server 2010 Software is used in a Windows Ser…

919 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now