Offline Address Book not updating in Exchange 2007

2017-12-08T13:31:47+00:00 December 17th, 2009|Exchange|

If you have a 2 node Exchange 2007 CCR cluster, you may come across a scenario where you create or remove a user account and you find that the OAB is not updating.

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The most probable and common cause of this is an incorrect setting in the registry. If you open regedit on each cluster node and navigate to the following registry key:

HKLMSYSTEMCurrentControlSetServicesMSExchangeSAParameters<Cluster Name>EnableOabGenOnThisNode

Make sure that this parameter is set to the <active node name>. If it isn’t, just right click this registry key and modify. If this registry key does not exist then it may need to be created.

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