Exchange 2003 not working right in AD

We have a 5.5 exchange with 2003 server. Since installing another 2003 server R2 but now we cannot create mailboxes on either 2003 server or at least they don't show up in Exchange manager.  Actually, I can't say that because the 5.5 and 2003 server connector got screwed up last week and I reconfigured it a couple of days ago.  So that is one change and the other change is the new 2003 R2 server which is on a seperate IP over a WAN with another DC but is the same domain.

On the 5.5 side we can create mailboxes and create new users.  There is an AD Connector on the original 2003 server that points to 5.5 so I assum it is working if I can create a new user from 5.5 mail server and an AD account.

I am wondering if I have to update the Exchange forest prep/domain prep with the R2 version to get things going?

UPDATE:  I have the user on the new 2003 server successfully get into the mailbox where as before he could not.  His mailbox was previously on 5.5 and was moved.  However, when sending mail to him we get an error from the 5.5 saying undeliverable as if 5.5 thinks his mailbox is still there or doesn't know about the new server?  But there is a connector between 5.5 and the other 2003 server.
ikeeponAsked:
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CetusMODCommented:
PAQed with points refunded (500)

CetusMOD
Community Support Moderator
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ExchgenCommented:
There is nothing great that you need to do with windows 2003 R2.

I am guessung the ADC connector is stopped functioning and hence we are having issues. Exchange 5.5 is rejecting the email for the user because it is not able to confirm if the user is part of the exchange organization 55 or 2003.

Raghu
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ikeeponAuthor Commented:
I created a mailbox on the new 2003 server and it does not show up in Exchange manager but shows up in AD...also the bounce back (I sent the mail using full mailbox name "Jonhdo@company.com") it bounced back from the 5.5 server.  So it looks like the connector?
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questionforrajaCommented:
What happens when you try to login to the mailbox that you created on EX2003.

Raja
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ikeeponAuthor Commented:
The user can login to his mailbox and can send mail outside.  He cannot recieve int/external email.  (We took this user from the 5.5 and moved him to the new 2003 server.)
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questionforrajaCommented:
What is the NDR talking about, Check the connector settings. Have you enabled message tracking.
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ExchgenCommented:
simple test will ensure that the conifguration is in place or now...

create a user in 5.5 and one in 2003.

Allow time for replication or force replication..

check if you see the 55 user in 2k3 and 2k3 user in 55.

If you can see them all is fine, and we can troubleshoot is further or else we need to take a different approch.

Raghu
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ikeeponAuthor Commented:
I created a user in AD and pointed the mailbox to the original 2003 server.  The mailbox does not show up in the Manager nor in the address list
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ikeeponAuthor Commented:
I created an additional SRS and that solved the problem between the mail between the two servers.
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ExchgenCommented:
Coolll..

You nailed the issue..

Raghu
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