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Exchange 2003 SMTP service is cripping clien't internet connection

Posted on 2012-04-02
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Last Modified: 2012-06-27
I  am out of town at the moment and a client reported the inability to send email and that their internet connection is crawling. I know that the issue has to do with the SMTP service because if we stop it everything returns to normal. This server is not used to relay email for users outside the domain. It is not configured for open relay or anything like that. I have enabled logging and will see what it gleans but because in order to have a stable remote connection that I need to troubleshoot this issue I have to disable the smtp service which does not allow me to access the smtp virtual server queue or see what's being logged in real time. I posted here in case anyone has run across this that could give me some ideas of things to try and to be more proactive. Any feedback is appreciated.
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Question by:J C
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4 Comments
 
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Anuroopsundd earned 500 total points
ID: 37799112
1 Can be a virus on some internal machine which is sending lots of mail.
2 many time some internal users send mail to mass customers with big attachments without knowing it.
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Author Comment

by:J C
ID: 37799130
One of our users did send out a very large attachment to several users but I froze and deleted the emails in the queue
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Expert Comment

by:Anuroopsundd
ID: 37799160
great.. so that resolved it.
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Author Comment

by:J C
ID: 37799411
No, it's not solved. It appears as if they are re-appearing in the queue, the problem remains. I stopped the smtp server and went into the Mailroot>Queue folder to manually delete the e-mails and the folder is empty.  Why are they showing up in the exchange queue but not in that folder? Any suggestions?
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