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To clarify...are you saying that a non-delivery is being received by the sender of the mail and is also being received by someone else as well?<br />
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If so, is that other person that is receiving the non-delivery notice identified in the properties of the SMTP Virtual Server under the &quot;Messages&quot; tab?
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To clarify...are you saying that a non-delivery is being received by the sender of the mail and is also being received by someone else as well?

If so, is that other person that is receiving the non-delivery notice identified in the properties of the SMTP Virtual Server under the "Messages" tab?

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For example, I send out an email to fake@home.com, not being an address a bounce back email gets sent, but instead of me receiving it, a co-worker of mine gets the bounce back email. A co-worker who has nothing to do with the email it self.<br />
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MrLonandB-I will check the settings under the virtual server. 
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For example, I send out an email to fake@home.com, not being an address a bounce back email gets sent, but instead of me receiving it, a co-worker of mine gets the bounce back email. A co-worker who has nothing to do with the email it self.

MrLonandB-I will check the settings under the virtual server.

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I just checked the messages tab, and there are no users listed under &quot;forward all mail with unresolved recipients to&quot; 
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I just checked the messages tab, and there are no users listed under "forward all mail with unresolved recipients to"

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Emails have been getting bounced back to other people than sender. Any ideas?? &nbsp;Running Server 2003. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<br />
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&nbsp;There was a SMTP communication problem with the recipient's email server. &nbsp;Please contact your system administrator.<br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &lt;*****.COM #5.5.0 smtp;550 No such domain at this location <br />

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Emails have been getting bounced back to other people than sender. Any ideas??  Running Server 2003.          

 There was a SMTP communication problem with the recipient's email server.  Please contact your system administrator.
            <*****.COM #5.5.0 smtp;550 No such domain at this location 


Non deliverable bounce backs getting sent to other people than sender.

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.