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If you are running Exchange 2007 and you want to share free/busy information with an Exchange 2003 Organization or vice versa, click here for more information.

Here are a couple of items to be aware of when you deploy the Exchange 2003 version of the InterOrg Tool between Exchange 2003/2007 Organizations.  If you need more information about Installing, configuring, and using the InterOrg Replication utility, click here.

  • You can install the InterOrg Tool on a computer that has the Exchange 2007 Management tools installed without any other Exchange 2007 server roles or on a computer that is running Exchange 2003.  If you have the Exchange 2007 Management tools installed on a computer, you will need to install Exchange MAPI client libraries (CDO 1.2.1) on the computer as well.  Click here for more information.
  • You must use an Exchange 2007 Public Folder to replicate free/busy information between Exchange 2003/2007 Organizations.  The ExchSyncSecurityFolder public folder must reside on both the Publisher and Subscriber servers.
  • The Exchange 2003/2007 InterOrg mailboxes must reside on the same server the ExchSyncSecurityFolder public server resides on.  For more information, click here.
  • Verify the firewall ports are open between the Exchange 2007/2003 Servers.
  • If you encounter the following error message when you set the appropriate permissions on the ExchSyncSecurityFolder using the Exchange Management Shell, click here to resolve the issue as the account you are using will need to run the Exchange Management Shell with elevated permissions per Tim’s article.

    The Windows Cluster service encountered an error during function OpenCluster:. At line:1 char:12

  • If there are Outlook 2007 users in the Exchange 2007 Organization, then you must configure the Availability service to check the public folder to obtain free/busy information from the Exchange 2003 Organization.  If you need a refresher on the Exchange 2007 Availability Service, click here.

    When you run the command Add-AvailabilityAddressSpace –forestname <SMTPDomainNameOfExchange2003Organization> –accessmethod publicfolder, it important to be aware of two things.   One, you will need to run the command multiple times if you have multiple SMTP domains in your Exchange 2003 Organization.  Two, you do not need to append the at sign (@) in front of the SMTP domain name each time you run the command.  For more information, click here.

    For each mailbox on the publisher server to which you want to replicate free/busy information, a corresponding custom recipient must exist on the subscriber server.  The SMTP address is the unique key that is used to match mailboxes to custom recipients so it’s important to specify the appropriate SMTP address(es) when you run the Add-AvailabilityAddressSpace command.
Posted on Wednesday, February 24, 2010 12:27 PM | Back to top


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