After moving a mailbox from exchange 2003 to 2007 user can't receive any email (internal or external)

After moving a mailbox from exchange 2003 to 2007 user can't receive any email (internal or external). I can send mail external and internal just fine after modifying the send connector on 2007. I'm not sure if the problem is with exchange 2003 and the connector that was created during the migration. If I try to view the properties of the connector I receive the following error "Exchange System Manager version 8.0.30.535.0 or greater is required to edit this object. See about dialog for version information." also here is another strange thing. It seems as though every time I try and send a test email to the mailbox I moved to 2007 it seems as though a symantec window pops up which says "Your email message was unable to be sent because your mail server rejected the sender: 503 Error: nested MAIL command" I am pretty sure this is what is causing the issue. Would this be something I need to configure or change on the new Exchange 2007 end? Any help would be greatly appreciated. Thanks -Joe
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Abacus ITAsked:
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Abacus ITConnect With a Mentor Author Commented:
After searching the web all over I found someone that posted this....

"I found that my SMTP connectors on my Exchange 2003 server were set incorrectly. I had the smart host set on the default SMTP virtual server instead of on the external routing group connector where it belongs so everything was getting passed out to the smarthost and going nowhere.

For the Default SMTP Virtual Server: Under administrative Groups: Servers: Protocols:SMTP: Default SMTP Virtual Server
In the properties look at the advanced button under the delivery tab. DO NOT put the smart host entry here.
 
It should be under the external routing group connector under Routing groups instead."
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Abacus ITAuthor Commented:
More info - On the 2003 Exchange server if I open System Manager and go to Tools then Monitoring and Status and click Status. I see the new 2007 server with a red circle and X on it and the status is unreachable yet the server is up everything is mounted and services are running fine. I can telnet to port 25 on it and even connect to the 2007 OWA interface and log on with my test account. Also if I click it in the status window and select properties I receive the following error "Unable to connect to the WMI service.  You will not be able to see the current status of the monitored resources and can not add disk or service monitoring resources.  ID no: c1038692 Exchange System Manager
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Abacus ITAuthor Commented:
More info - If I open system manager on exchange 2003 and look at the Exchange Administrator Group for the new Exchange 2007 server, if I click on server drop down to the exchange 2007 server then click queue's in the right panel it tells me the queue's are unavailable. I will include a screenshot. Please any help with this would be great. It's causing major headaches with our migration. Thanks again!!
queue-ss.bmp
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MrLonandBCommented:
How are you ultimately delivering your mail...by DNS or SmartHost?
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Abacus ITAuthor Commented:
I believe there is a smarthost. I am not 100% but pretty sure. I can get the exact answer when I talk with my boss. (he's not available today) If it is smarthost what would I need to change? I would think the install would build everything and configure based on the 2003 exchange server but we are talking about microsoft here lol
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Abacus ITAuthor Commented:
Ok I talked with my boss and yes we use a smarthost. Why would this effect users receiving messages? A test user on the new Exchange 2007 server can send a message out internal and external just fine. But I can't send a message to that Exchange 2007 test user either from the old 2003 server or from an external email address....
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MrLonandBCommented:
Do you have the SmartHost configured on the Default SMTP Server or an "SMTP Connector"?

The reason for my asking, is that often times, when an organization has only one Exchange Server, they will set the Smart Host on the Default SMTP Server...which is fine. But when they add a second Exchange Server...the two servers cannot talk to one another. And the reason is that the Servers use the Default Smtp to pass traffic between them and the SmartHost prevents that. If that is the case with you, you will need to take the Smart Host off the Default SMTP Server and create an "SMTP Connector" for your SmartHost.
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Abacus ITAuthor Commented:
We have taken the Smart Host of the Default SMTP Server and have it on the SMTP Connector.  We are able to send out to the World via that Connector but when we are recieving to a user it comes into the Exchange 2k3 server.  and it just sits their.  it will not route to the Exchange 2k7 Server.  We notice that their is a connector between the Exchange 2k3 and 2k7 Server.  But we cannot look at it from the Exchange System Manager within Exchange 2k3.  How can we view this connector from Exchange 2k7 Management Console.  I believe that the Installation of this connector is the Problem when we are looking at the logfiles.
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Abacus ITAuthor Commented:
sorry i understand what you are saying and it sounds like our problem but i'm confused. which server do we need to make these changes to? I'm assuming the 2003 server. Also how would we go about making these changes? How would we create the SMTP connector for our SmartHost? The exchange 2003 server is a production email server and I dont want to make any wrong changes that would take us down! =)
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bushmonkeyCommented:
Asellus, i can't thank you enough for this post, it really saved me!! I had just setup our Exchange 2007 servers and could send but not recieve on the clients, turns out our smarthost was setup on the default SMTP virtual server for Exchange 2003.   I moved it to our SMTP connector and email started flowing!!

Thank you so much!!  Excellent post.

Jim
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