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Exchange # 5.1.2 - destination e-mail system is unknown or invalid

Posted on 2004-09-08
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Last Modified: 2008-01-09
I have an Exchange 2003 Server.  One of my users (only one that I can tell so far) has an issue sending mail to anyone else on the server.  She gets the following error:

"The message could not be delivered because the recipients destination email system is unknown or invalid.  Please check the address and try again, or contact your system administrator to verify connectivity to the email system of the recipient"

<WIMAD-EXCHANGE.wi.loc #5.1.2>


Have searched on the web but cannot find the same issue.  Can anyone help?  
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Question by:jzacher
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Author Comment

by:jzacher
ID: 12008564
Figured out answer myself- it was due to Outlook 2003 caching.  Have no idea why but turning it off worked.  
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rhandels earned 750 total points
ID: 12009622
Please post a comment in the Support area (in the top left) to close the question and ask for a refund of points..
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by:jzacher
ID: 12619344
top left???
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Expert Comment

by:rhandels
ID: 12619634
Sorry, top right of the screen, you will see support there....
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by:jzacher
ID: 12619765
I know I must seem like an idiot, but I cannot find a way to e-mail anyone that handles the site.
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Expert Comment

by:rhandels
ID: 12619804
Hi,

You can get the question closed by posting a question within the support area. You can reach the support area by clicking on Support in the top right corner. Then, create a 0 points question that points to this question and ask to get this one deleted..
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