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October 29, 2002
When you copy a user in Active Directory Users and Computers, the UPN box next to the user name contains corrupted data instead of @DomainName.com.
If the UPN attribute does NOT contain [email protected], you may experience this corruption.
To workaround this issue, change the UPN attribute for the user object to the correct [email protected] string by using Ldp.exe or AdsiEdit.exe.
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