Changing Pre-Windows 2000 Username

I have a client that has been using an email address of for years.

I just moved them onto SBS2011 using Exchange 2010. When I go to create a 'service' email address, I get an error saying that the username exists in pre-windows 2000.
Can I remove this?
Where do I find it so that I can remove it?
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setspn -l for listing
setspn -d for deleting
Obi WanFixerUpperCommented:
you can search through active directory to find the email address in question:

This should point you in the right direction

CSVDE -f adusers.csv to list the complete list of users and computers..
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.

LostInWindowsAuthor Commented:
C:\Windows\system32>setspn -l service
FindDomainForAccount: Call to DsGetDcNameWithAccountW failed with return value
Could not find account service

I looked at the .csv file. I have 8 users that I have created and this file has entries on more than 310 lines. Service must be a popular word (it is also in services)
What field would this information be in?
Neil RussellTechnical Development LeadCommented:

You can NOT delete it or RENAME it

DO NOT TRY!! You will kiil your system.

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LostInWindowsAuthor Commented:
Is there a way that I can set up a email account? Exchange says that I can't because it already exists.
LostInWindowsAuthor Commented:
OutputI used serviceemail as the pre-windows 2000 account and it worked!
LostInWindowsAuthor Commented:
Thanks for the warning. I found the workaround in the post
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