Microsoft KB Archive/174693

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XADM: Exchange Organization Name Is Case Sensitive

PSS ID Number: 174693

Article Last Modified on 11/19/2003

The information in this article applies to:

  • Microsoft Exchange Server 5.5
  • Microsoft Exchange Server 4.0
  • Microsoft Exchange Server 5.0

This article was previously published under Q174693


The Exchange organization name is case sensitive when you reinstall Exchange Server during disaster recovery, but is not case sensitive with regard to directory replication addressing.


When viewing information about the organization name and directory replication, case sensitivity of the organization name is unimportant.

If the only difference between the organization names is the case- sensitivity, all parts of directory service replication will work correctly. If a replication problem occurs because the case of the organization or site name differs, it is a bug and should be treated as such. Case sensitivity of the organization name, regarding directory service replication, is not an issue. However, it is an issue regarding disaster recovery or restoring. For example, a server in an organization named Dynasty fails and must be restored, if Microsoft Exchange Server is reinstalled and the organization is named DYNASTY (uppercase), the store does start because of the mismatch (Dynasty versus DYNASTY).

This is a constraint of the X.500 nomenclature in the information store. This can be avoided by reinstalling Exchange Server with the original organization name, Dynasty, for that restoration of that server. More information regarding disaster recovery can be found at the Microsoft World Wide Web site at

Additional query words: Organization case-sensitivity replication crash

Keywords: kbinfo KB174693
Technology: kbExchange400 kbExchange500 kbExchange550 kbExchangeSearch kbZNotKeyword2