User rename issue - AD

I have renamed a user via right click on user account in AD and click Rename and renamed from old name to new name.
All seems ok except in outlook when i compose new email as i type her name in the To: box it shows new name along with the old name in the bracket when it autocomplete. I have deleted cache in outlook including .nk2 files and i am not using outlook cache mode either. Also i have tried downloading offline address book but still this problem is still there. Does not matter on which computer i try this it shows me the same thing. It look like that this is something to do with AD or exchange.
We are using outlook 2003 with exchange 2003 and AD 2000/2003.

Any help will be appriciated. thanks
tech2010Asked:
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MegaNuk3Connect With a Mentor Commented:
LegacyexchangeDN values do NOT ever get changed by mailbox renames, mailbox moves, mailbox disconnects. It basically stays with the mailbox from creation to purge. The only way to change them is to use ADSIEdit.

Or a more manual method:
1.) export the mailbox to PST
2.) delete the mailbox
3.) give the user a new mailbox, the legacyexchangedn will then be based on where you are creating the mailbox + Alias
4.) give the new mailbox the old legacyExchangeDN as an X500 email address. So mails to the old legacyexchangedn will still work.
5.) import the mail
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MaximumIQCommented:
How long has it been since you changed the name?

I'd say review all properties in AD again. If all look good there, right click the user in outlook => Properties => Check all tabs for a refrence to the old name.
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nettek0300Commented:
Did you change the name on the exchange tabs?  I do not think it does it automatically.  The machine you do it from needs to have the Exchange tools installed so that you can view the Exchange tabs in Active Directory.  As Maximum stated above, check all tabs to verify that the name is changed everywhere.
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tech2010Author Commented:
guys i have already checked these thing and i can confirm that alias has also been changed under exchange tab. Also under outlook properties it is not showing any reference to old name. Can you guys try at your side and see if you get similar issue.
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tech2010Author Commented:
guys i just noticed something, can any of you flag something out of it.

I just tried to create her mail profile on my machine via "control panel > Mail >  Add new email account" and i typed her user name and click on "check name" and then clicked on properties of her name and noticed that in the Email Address field there is reference of her old name like this /O=domain.local/OU=AdminGroupName/cn=Recipients/cn=OldName

Does it mean anything? do i need to use adsi edit to change this reference, the admin group name is showing me of exchagne 2000 server whereas this user exist on exchange 2003 and different admin group.
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tech2010Author Commented:
where this is coming from /O=domain.local/OU=AdminGroupName/cn=Recipients/cn=OldName

and how can i chagne this to new
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MaximumIQCommented:
AD should have changed that when you rename. If it didn't, I wonder what else didn't get changed. To be safe, I would try to either rename the account again from a different machine (perferrably an AD or Exchange server) or if it's a new user that was just created but had a typo in the name, it's probably a good idea to just delete the account and re-make it.
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transgroupCommented:
I have ran into this alot. AD does not like to work well with exchange when you make changes to the user (specifically renaming). What i usually end up having to do is recreating the user and mailbox.
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MegaNuk3Commented:
That is the legacyExchangeDN value of the mailbox you are seeing. You can change it, but I would recommend leaving it alone.

If you really want to change it you can, but copy the old value and paste it into a new X500 email address on the user's mailbox, otherwise if anyone uses their outlook cache or replies to an old message this user sent it will NDR.
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