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recipient primary SMTP address is missing or invalid>

I have exchange 2003 servers 2 exchange 2010 servers setup. All of the users are still on exch 2003 but when they send ceratin emails, they get bounce back messages that state the following:

The following recipient(s) could not be reached:

      Jim Smith on 9/6/2011 4:02 PM

            The message reached the recipient's e-mail system, but delivery was refused.  Attempt to resend the message.  If it still fails, contact your system administrator.

            <TMKEX01.test #5.2.0 smtp;550 5.2.0 RESOLVER.ADR.BadPrimary; recipient primary SMTP address is missing or invalid>

      Jane Doe on 9/6/2011 4:02 PM

            The message reached the recipient's e-mail system, but delivery was refused.  Attempt to resend the message.  If it still fails, contact your system administrator.

            <TMKEX01.test #5.2.0 smtp;550 5.2.0 RESOLVER.ADR.BadPrimary; recipient primary SMTP address is missing or invalid>


Is there something that I need to setup or change on the 2010 exchange server since the bounce back message is referring to the exch 2010 server, but as I mentioned, the users are still on exch 2003. They have not been migrated yet.
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vmich
Asked:
vmich
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1 Solution
 
isaman07Commented:
The source of the message is not your exchange 2010 server. Your exchange 2010 server is relaying the message to you from the destination mail server. The destination mail server is actually refusing the emails for improper addreesses.
Are you having this problem with all the emails or just few?
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vmichAuthor Commented:
Just a few not all....
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isaman07Commented:
A few, do they belong to the same address space/domain?
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vmichAuthor Commented:
actually the 2 they were complaining about were from the sam domain.
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isaman07Commented:
That's what i expected. Youe exchange 2010 server is functioning just fine. It's the destination domains server that is configured wrong or you have the wrong email addresses.
Either tell your people to contact them ro get the proper email addresses or let them know that their administrator has to fix the issue. You are on the safe side.
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vmichAuthor Commented:
outside issue
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vmichAuthor Commented:
outside issue
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