Of course, this is not a requirement to run a successfull Exchange installation at all, but it will help understanding the various processes. Furthermore, I will sometimes refer to clustered mailbox servers CCR and how this setup may influence the oalgen process. Symptoms When you have discovered that the Offline Address Book is not updating anymore, you may see the following event log entries in the log on your mailbox server: No offline address lists have been generated.
Please check the event log for more information. Offline address book generation will not be performed. The Offline Address Book files that get downloaded by Outlook clients are stored on the CAS Server s in the following folder assuming that you have performed an Exchange installation using the default folders: Most of these files should be not older than a couple of hours, and especially oab. So you have to monitor this folder and see if the files get updated.
In fact, it may be ok to just monitor the timestamp of oab. There may be an oabgen problem! Check the oabgen schedule on the server and find a good amount of hours that is allowed for your environment. Fixing oalgen and oab distribution issues If the oab. Make sure there is an Offline Address Book in the environment First of all, there needs to be a default offline address book configured in the environment.
If you are creating a new Offline Address Book, the MailboxDatabases may loose their reference to the default offline address book. Set the generation server to your mailbox server of if you are running a cluster, pick the CMS cluster name. You can test if the oab folder exists by browsing to https: Before doing anything else, verify that the Remote Registry Service is running. If the service is not running, the Exchange Server may encounter problems when doing RPC calls to itself, which could result in OAB and other problems.
Open the properties and note the objectGUID value. The OAB will be created on the server that holds the active mailbox server role.
If you are operating a cluster, it will be the active node. So you have to verify what the active node is on both the Windows level and Exchange level: If that is not the case, create the value String Value and enter the hostname not fqdn of the active mailbox server. Stop and Start it to make sure settings are re-read.
In the application event log on the mailbox server, you may see a MSExchangeSA Event log entry that indicates that the oabgen dll is started. Now force the offline address book to get updated. On the CAS server, open C: There are new OAB files new binpatch. You should see something like this Event Type: