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Problems after migrating a 5.5 test user and mailbox to new AD and 200 exchange

After migrating a test group, user, computer and mailbox to the new 2003 AD and Exch, I can receive mail from recipients on 5.5 and from the Internet.  However, I cannot send to the org or the Internet.  I get a 5.4.8 error: configuration error caused message to bounce between two servers or forwarded between two recipients.  What am I missing on the new 2003 Exchange box?  Is it "SmartHost" in SMTP or do I have to create a SMTP connector?

Any help would be greatly appreciated!

Thank you in advance for your time and knowledge.
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byannacone
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byannacone
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atcjCommented:
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byannaconeAuthor Commented:
Thank you very much for the link as I did recall something of the custom recipients being created in 5.5.  Well, they weren't.  I see that I can create one manually which has been a while since I did.  However, doesn't ADC manage the syncing between 5.5 and 2003?  If so, why did it not create the custom recipient.  If I need to create this, what is the syntax for the post office name as I know the mailbox and network names.  Is the post office name the site name?  

Since I can't have duplicate aliases, do I just append a "-C" to the alias for the custom tag or what do you recommend.  I have read being able to do this in bulk.  I just need to test this one account for now before I create other test accounts.

Thanks!
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byannaconeAuthor Commented:
I also know that an smtp connector has been used to communicate between the 5.5 server and the 2003 one.  However, I thought that was only when the ADC wasn't working which is its own separate issue.

Any thoughts on that avenue?
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byannaconeAuthor Commented:
Alrighty then!!!  I found the (insert expletive here) issue!  The issue stems from our 5.5 server name which is the same name as the domain name.  In our campus DNS our record shows as fndmail.XXXX.XXX.  Our server FQDN in DNS is fndmail.xxxx.xxx.  That is causing the loop which shows as an NDR 5.4.8 and in the event viewer application log.

AHHHHHHH!  I am having a nice talk with the previous Exch admin...LOL...at the very least he's buying me a steak dinner for the grief.  This only came up with the second migrated account as the first failed and that is why I couldn't pin point it.  Once the successful acct attempted to send e-mail, the NDRs started coming in.

Thanks!

Talking to the Jefe(chief), she agrees that it just may be best to create the different Org now instead of during our 2007 migration (yea, that's coming up for me, too).  

Either way, I found the issue and solved the problem.

Thank you to all and may the IT gods smile upon you.
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