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This user is not using auto complete. &nbsp;<br />
I've tried to type out the name of user on the 2000 and tried selecting a name from global address list.<br />
<br />
Still did not work.<br />
<br />
No NDR is received by the 2003 user.
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I've installed Installed new Exchange 2003 in Win 2000 domain with existing exchange 2000. &nbsp;Everything went well. <br />
<br />
I've successfully moved one mailbox over to the new 2003 server as a test.<br />
<br />
Using the moved email account I can send and receive emails &nbsp;to external sources.<br />
<br />
I can receive emails from users' who's mailboxes still reside on the 2000 box. &nbsp;But emails send from this account is never received by the recipients on the 2000 box.<br />
<br />
<br />
I'm wondering if there is a some sort of relationship which needs to enabled for this to work.<br />
<br />
Please advise.<br />
<br />
-New to the Exchange Admin world.<br />
<br />

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I've installed Installed new Exchange 2003 in Win 2000 domain with existing exchange 2000.  Everything went well. 

I've successfully moved one mailbox over to the new 2003 server as a test.

Using the moved email account I can send and receive emails  to external sources.

I can receive emails from users' who's mailboxes still reside on the 2000 box.  But emails send from this account is never received by the recipients on the 2000 box.


I'm wondering if there is a some sort of relationship which needs to enabled for this to work.

Please advise.

-New to the Exchange Admin world.



This user is not using auto complete.  
I&#39;ve tried to type out the name of user on the 2000 and tried selecting a name from global address list.

Still did not work.

No NDR is received by the 2003 user.

Installed new Exchange 2003 in domain with existing Exchange 2000.  Now only one way emails flow

I&#39;ve installed Installed new Exchange 2003 in Win 2000 domain with existing exchange 2000.  Everything went well. 

I&#39;ve successfully moved one mailbox over to the new 2003 server as a test.

Using the moved email account I can send and receive emails  to external sources.

I can receive emails from users&#39; who&#39;s mailboxes still reside on the 2000 box.  But emails send from this account is never received by the recipients on the 2000 box.


I&#39;m wondering if there is a some sort of relationship which needs to enabled for this to work.

Please advise.

-New to the Exchange Admin world.



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.

Exchange

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.