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The legacyExchangeDN for this administrative group is invalid

[This topic is intended to address a specific issue called out by the Exchange Server Analyzer Tool. You should apply it only to systems that have had the Exchange Server Analyzer Tool run against them and are experiencing that specific issue. The Exchange Server Analyzer Tool, available as a free download, remotely collects configuration data from each server in the topology and automatically analyzes the data. The resulting report details important configuration issues, potential problems, and nondefault product settings. By following these recommendations, you can achieve better performance, scalability, reliability, and uptime. For more information about the tool or to download the latest versions, see "Microsoft Exchange Analyzers" at http://go.microsoft.com/fwlink/?linkid=34707.]  

Topic Last Modified: 2005-11-17

The Microsoft® Exchange Server Analyzer Tool queries the Active Directory® directory service to verify the legacyExchangeDN value of an administrative group. This error is displayed if the organization or administrative group named in the legacyExchangeDN value does not match the actual name of the organization or administrative group, or if part of the value is missing entirely.

Exchange uses the legacyExchangeDN value to identify Exchange objects in Active Directory. The legacyExchangeDN value is a distinguished name that indicates where the object fits in the Exchange organization, for example:

/o=organization/ou=administrative group

Objects such as servers and folder hierarchies inherit part of their legacyExchangeDN values from the administrative group. This means that if there is a problem with the administrative group value, many other objects may inherit the same problem.

Generally problems with the legacyExchangeDN occur when an administrator has tried to directly modify the value. You must correct the value using a tool such as the Active Directory Service Interfaces (ADSI) Edit snap-in, the LDP (ldp.exe) tool, or any other Lightweight Directory Access Protocol (LDAP) version 3 client.

CautionCaution:
If you incorrectly modify the attributes of Active Directory objects when you use ADSI Edit, the LDP tool, or another LDAP version 3 client, you may cause serious problems. These problems may require that you reinstall Microsoft Windows Server™ 2003, Exchange Server 2003, or both. Modify these Active Directory object attributes at your own risk.

  1. Use an Active Directory editor, such as ADSI Edit, to locate the administrative group object in Active Directory.

    The legacyExchangeDN attribute can be found at:

    CN=Configuration, CN=Services, CN=Microsoft Exchange, CN=Organization, CN=Administrative Groups, CN=Administrative group

  2. Type a new string value of the form:

    /o=organization/ou=administrative group

For more information about using the LDP tool, see the Microsoft Knowledge Base article 260745, "XADM: Using the LDP Utility to Modify Active Directory Object Attributes" (http://go.microsoft.com/fwlink/?LinkId=3052&kbid=260745).

For more information about working with ADSI Edit, see the topic, "Adsiedit.msc: ADSI Edit" in Windows Server online Help.

 
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