Exchange Migration issue 2003 to 2010

I recently completed a migration from 2003 to 2010.  I am seeing issues where e-mail comes into the domain correctly (through a Barracuda device), then the Exchange server says that it doesn't know where the old 2003 server is (it is shut off and unavailable).

I'm at a loss here, how do I get the mail to route correctly to the 2010 servers?

Thanks,

Andrew
AndrewRowlandAsked:
Who is Participating?
 
Antonio VargasConnect With a Mentor Microsoft Senior Cloud ConsultantCommented:
The send connectors are only for outbound mail so wont be relevant for the inbound issue? so barracuda is sending e-mail to the exchange 2010. is the exchange 2010 queue empty?

go to the exchange 2010 management console and use both the queue viewer and the message tracking (on the toolbox) to see where the message is. where do you see the status of the message as delivered? also is that on a 2010 mailbox and you open OWA and cant see the message?
0
 
Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
is the e-mail stuck on the 2010 server or the barracuda?
you need to create a receive connector on your 2010 server that accepts e-mails from the barracuda IP address and on port 25. Also anonymous logon should be enabled on that connector if the barracuda doesn't authenticate to relay e-mail in.
Make also sure that your send connector is scoped to your 2010 server.
e-mail flows between 2010 and 2003 via a routing group connector, that you need to delete when decommissioning the 2003. if the e-mail is stuck on the 2010 server the only reason for that is exchange detecting that the destination user is on 2003 and the 2003 server is shut down.

create a custom receive connector on 2010:
http://technet.microsoft.com/en-us/library/bb125159(v=exchg.141).aspx
0
 
Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
forgot to say that on your barracuda you need to change your inbound mail flow rule to point to the 2010 IP address rather than the 2003.
0
Making Bulk Changes to Active Directory

Watch this video to see how easy it is to make mass changes to Active Directory from an external text file without using complicated scripts.

 
AndrewRowlandAuthor Commented:
The mail is being delivered from the Barracuda to the Exchange.  Where it goes from there is  a mystery.  I can run an SMTP test on the Barracuda and it will deliver to the correct mailbox.  Letting the mail "flow" as it were, ends up with mail being "delivered" but not actually showijng up in boxes.
0
 
AndrewRowlandAuthor Commented:
I will check the send connectors.
0
 
Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
my guess is that you're seeing the delivered on the barracuda and the messages are on the exchange 2010 queue. please check
0
 
AndrewRowlandAuthor Commented:
The problem turned out to be that the SMTP server was still on on the 2003 server.  Once we turned that off and turned off all Exchange services on the 2003 server, mail started going wherte it was supposed to.
0
 
AndrewRowlandAuthor Commented:
The mail was actually in the 2003 server queue.  Strange.
0
 
AndrewRowlandAuthor Commented:
Thank you for your help, Vargas.
0
 
Antonio VargasMicrosoft Senior Cloud ConsultantCommented:
no problem.
0
All Courses

From novice to tech pro — start learning today.