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Exchange 2003: only subject arrives at destination. Error: No message collected

Working in a small business 2003 evironment. A couple of times a week, we have the problem that recipients only receive the subject of the email that's being send. Sometimes, but not always, the receiver sees the following message in the body of the email:

<<< No Message Collected >>>

I just activated logging on the SMTP protocol. But since it only happens couple of times a week, it could take a while.

Don't know if it could be of influence, but i did notice the following, in the properties of my 'default SMTP virtual server', under 'delivery' and then 'advanced' is the setting to check the DNS of your fully-qualified domain name. If I check that setting, I receive an error 'The domain name is not valid'.

Furthermore, we are running Symantec Mail Security for MS Exchange, but I believe that only checks incoming mail, not outgoing.
Also, we are forwarding our SMTP mail to the mailserver of our ISP.


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Constant IT Support
Asked:
Constant IT Support
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1 Solution
 
SembeeCommented:
The check DNS button usually fails. That will have nothing to do with this problem.

It isn't 100% clear from your message, but this is for outbound email? Email leaving your server to be sent to someone outside?

If so, it is going to be very difficult to prove where the message is being stripped.
My instinct is usually to blame the Symantec product. When I do that I am often not wrong - Symantec's products seem to cause more problems than anything else.

Unfortunately to test whether the Symantec product is at fault, it has to be removed. Disabling it is not enough, as the product still has hooks inside Exchange.
Also make sure that no desktop AV application is not scanning any of the /exchsrvr directory.

Simon.
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Constant IT SupportAuthor Commented:
Yes, problem is with outbound mail.
Symantec only scans inbound mail voor virusses and spam I believe. Could this still be the problem then?
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SembeeCommented:
The antivirus product is usually on the transport mechanism. So while it isn't acting on anything on the outbound traffic, it will still be interfering. The only way to test that is to remove it.

The point I am trying to get across is that until you have exhausted all possibilities at your end, no ISP is going to listen to you. Remember all ISPs are only interested in one thing - finding something else to blame. You have to rule out everything else so that when they tell you it isn't their problem, you have as much proof as you can to say that it isn't something with your setup.

Simon.
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