
To further test the OAB, beside manually downloading it in Outlook, you can write down the OAB URL, paste it into the address box in Windows Internet Explorer, add /OAB.xml to the end of the path, and then press Enter. Or simply enable Global Web Distribution:Īfter resetting IIS (or recycling the OAB application pool), if we run the Outlook AutoConfiguration Test again we should see the OAB URL: The first is to specify which virtual directory(ies) to use: So, without OAB URL users simply do not know where to go to get the OAB! Depending on the environment, we now have two options.
#Get offline address book server full
Note: If you're using Cached Exchange Mode, we recommend that you download the full details of the offline address book. If you see an option for Information to download, select Full Details or No Details.

Outlook receives OAB URL from Autodiscover and reaches designated CAS 2013 through OAB URL. Select Download Address Book or Download changes since last Send/receive. OAB files are generated and stored in the Organization Mailbox first and later copied to the %ExchangeInstallPath%\ClientAccess\OAB\ folder on the Mailbox server responsible for generating the OAB ĬAS 2013 proxies all OAB download requests to the appropriate Mailbox server (the one above) OAB files are not stored locally on the CAS If this parameter is specified, Version4 of the OAB must be generated.īecause, for some strange reason, none of these properties was set, there was no virtual directory for users to download the OAB from. VirtualDirectories specifies the array of OABVirtualDirectory objects.

If the value of the GlobalWebDistributionEnabled parameter is $True, distribution occurs to all virtual directories in the organization, and we cannot add values to the VirtualDirectories parameter GlobalWebDistributionEnabled specifies whether distribution occurs to all virtual directories in the organization. So what do these two properties do exactly? Looking at the properties of the OAB, I noticed that Global Web Distribution was disabled and Virtual Directories was empty:

After some troubleshooting steps, I ran the Outlook AutoConfiguration Test and noticed that the URL for the OAB was not listed: The other day I was troubleshooting an issue where users were not able to download the Offline Address Book (OAB).
