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Relay Issues Exchange server 2003 ent edition over server 2003 ent edition

Posted on 2006-11-04
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Last Modified: 2010-03-06
Hi all
I think my exchange server 2003 is relaying messages.  As I have started receiving messages like 'abc@mydomain.com' where abc user is not from domain.  I need help to check it out.  Please tell me where to check in ESM so that my email server does NOT relay messages.  And how to stop these messages which have 'userNOTonmy domain@mydomain.com'   Also how to check it afterwards.
THanks
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Question by:amanzoor
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redseatechnologies earned 500 total points
ID: 17874743
Hi amanzoor,

You are most likely not a relay - if you check the headers of the email you received, you will see it originated from the outside.

This guide from Sembee will show you how to ensure you are not a relay, and how to cleanup if you are -> http://www.amset.info/exchange/spam-cleanup.asp

It is also a good idea to enable recipient filtering (and tarpitting) -> http://www.microsoft.com/technet/prodtechnol/exchange/E2k7Help/78cc46ea-d8fc-4d0f-837b-c485ad2ae5d5.mspx

Finally, you can DENY your local address here -> http://www.msexchange.org/tutorials/MF014.html <- this will only be a problem if you have external users, sending as your domain, but not using your SMTP server.  Be careful with this, as it is not ideal, and can make troubleshooting harder.  I recommend you look at GFI or an alternative spam filter.

Hope that helps,

-red
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by:amanzoor
ID: 17877313
Hi redseatechnologies:
Thanks:
I established recipient filtereing as per your suggestions and applied tar pitting as well.  I restarted my machine and got:
WHen I open up my active directory in exchange server and try to go to any users properties it shuts down.  I tried making a new icon through going into mmc, still the same thing.  Help plz  I think it occured when I establihsed Tar pit time in exchange as per article:
http://support.microsoft.com/default.aspx?kbid=842851 

NOTE: when I restart the exchange it gives me MMC window saying:
error signature szAppName:mmc.exe szAppVer: 5.2.3790.1830 szModName:user32.dll szModVer:5.2.3790.1830 offser: 00011b1d
Help plz
AM
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by:redseatechnologies
ID: 17878973
I think that is an unrelated problem,

If you have another DC, install Exchange Management Tools on that and see if it works (it should).

The first thing I would do on your Exchange server is to reinstall exchange and see if that clears up the issue,

-red
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by:amanzoor
ID: 17880670
redseatechnologies:
You are right it works on my laptop.  Reistalling exchange would be too much since the users will make a hassle.  Is there any other shortest way of cealring this AD shut down issue?
THanks
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by:redseatechnologies
ID: 17901758
>>Is there any other shortest way of cealring this AD shut down issue?

In a word, no.

You have a major problem there, and hopefully it is not major AD corruption (the fact that it works on your laptop says it isnt)

If it is just the MMC that is corrupted, or the console inside it, then it is not a major issue (but should still be resolved).

How you would resolve that without reinstalling exchange, I am not sure - maybe (Start > run > sfc /scannow) to start?

-red
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