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Exchange 2007 Error 'CN=Public Folders¡­ ' already existed

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Exchange 2007 Error 'CN=Public Folders¡­ ' already existed

Postby guest » Fri Jan 25, 2008 2:34 pm

Situation: when running "setup /prepareAD" for Exchange 2007, an error was received stating the object 'CN=Public Folders¡­ ' already existed

If I have misunderstood your concern, please let me know.

According to my experience, as the KB article 936907 described, our issue
could mostly be caused by incorrect purportedSearch value set for the
"CN=Public Folders" object.

I suggest we first work together to double check this value:

WARNING: If using the ADSI Edit snap-in to incorrectly modify the
attributes of Active Directory objects, serious problems may occur. These
problems may require reinstalling Microsoft Windows Server, Microsoft
Exchange Server, or both. We cannot guarantee that problems that occur if
you incorrectly modify Active Directory object attributes can be solved.
Please first backup your AD information and Exchange server before trying
the following steps.

1. Start ADSiEdit snap-in. This tools is included in Windows 2003
supporting tools.

a. Install Windows 2000/2003 Support Tools from the Windows 2000/2003
Server CD if Windows 2000/2003 Support Tools is not already installed. To
do so, locate the Support folder on the CD, open the Tools folder, and then
double-click Setup.exe

b. After Windows 2000/2003 Support Tools is installed, click Start, point
to Programs, point to Windows 2000 Support Tools, and then click ADSI Edit.

2. Expand Configuration [DomainController.example.com], expand
CN=Configuration,DC=example,DC=com, and then expand CN=Services.

3. Expand CN=Microsoft Exchange, expand CN=OrganizationName, and then
expand CN=Address Lists Container.

4. Right-click "CN=Public Folders", and then click Properties.

5. On the Attribute Editor tab, click purportedSearch, and then click Edit.

6. In the Value box, copy and paste the following value into the box:

(& (mailnickname=*) (| (objectCategory=publicFolder) ))

Note: Please copy and paste the value above since the value is sensitive.

7. Click OK, click Apply, and then click OK.

8. Wait for some time until replication completes.
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