Changing Pre-Windows 2000 Username

setspn -l for listing
setspn -d for deleting

you can search through active directory to find the email address in question:

http://www.msexchange.org/articles/finding-duplicate-smtp-addresses.html

This should point you in the right direction

Jamie

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

C:\Windows\system32>setspn -l service
FindDomainForAccount: Call to DsGetDcNameWithAccountW failed with return value
0x00000525
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?

Is there a way that I can set up a Service@company.com email account? Exchange says that I can't because it already exists.

I used serviceemail as the pre-windows 2000 account and it worked!

Thanks for the warning. I found the workaround in the post