JSI Tip 5875. The UPN box in Active Directory Users and Computers contains corrupted data?

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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