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Also, it would help if you could give us more specifics on the NDR. &nbsp;For example, which server exactly is sending the NDR?
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Also, it would help if you could give us more specifics on the NDR.  For example, which server exactly is sending the NDR?

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Glad I could help :-)<br />

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I have an MS Exchange Server 2003 and use Outlook 2003 clients on Windows Server 2003.<br />
I am able to send internal emails, but external emails are being bounced back.<br />
I would like to simply point exchange to our ISP and have it forward the emails to the ISP for distribution.<br />
My knowledge of Exchange is extremely limited. <br />
<br />
Currently when I send an external mail the non-delivery report is <br />
&quot;The e-mail account does not exist at the organization this message was sent to.&quot;<br />
But I know the account does exist!<br />
<br />
Thank you for any help/advice!
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I have an MS Exchange Server 2003 and use Outlook 2003 clients on Windows Server 2003.
I am able to send internal emails, but external emails are being bounced back.
I would like to simply point exchange to our ISP and have it forward the emails to the ISP for distribution.
My knowledge of Exchange is extremely limited. 

Currently when I send an external mail the non-delivery report is 
"The e-mail account does not exist at the organization this message was sent to."
But I know the account does exist!

Thank you for any help/advice!

Exchange Server 2003 not sending external email

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.