

If the VHD does not attach because the Office 365 container is already in use then the value of 2 for NoOST will NOT be overridden and the user will be placed in online mode Settings where the OST and search will be cached. What this does is if the Office 365 container attaches properly, FSLogix will override this value (using FSLogix set value rules) on a per user basis to 0 and Outlook will use the GPO HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\office\16.0\Outlook\OST\NoOST:DWORD = 2 This is not an FSLogix setting, but a Microsoft setting and thus in not Finally, in order for this feature to work, Outlook must be configured to default to online mode. But for now (10 March 2020) it needs to be set to 0 (zero) for this process to work correctly.Ĥ.


New setting which did not exist when this document was written and may be removed in the future.

Update: If FSLogix Profiles are being used, then the OutlookCachedMode value on the Profiles key (not the ODFC key as that is noted above) must be set to 0 (zero). Used to ensure that cached mode is only used when the container is attached.Ī value of '0' (default) means normal direct access behavior.ģ. If set to '1' and the O365 Container is successfully attached, the Outlook setting that enables cached mode will be temporarily set until the container is detached. Their default values are what should be used, respectively 1 and 0 The FSLogix Office 365 container (registry values as HKLM\Software\Policies\FSLogix\ODFC or through the GPO) needs to be enabled and correctly configured. The MS GPO (or other means registry, etc.) must be used to set these values. FSLogix does not set Cached Mode or Length of Time to include in cache. This is very important for this values to be configured for this process to work and recover if a second session These admin templates (.admx files) are available through Microsoft. To do this, all user sessions need to have the correct Microsoft GPOs applied which configure for Outlook: 1) Cached Mode and 2) the length of timeįor the cache to contain emails. The first session will always get the VHD attached and have the cached OST and Search. Is a second session concurrently with the first session which already has the OST in use. But if it happens, then the second session will not connect to the VHD and will simply operate Outlook in online mode assuming that Outlook is run in this second (concurrent) session. Online mode is a fallback position if there The environment this is targeted at will generally not have concurrent sessionsįor the same user. What this mode will do: for the first session it will use the Office 365 VHD with OST and Search caching. This will go over the steps for a second Outlook session to get online mode. How to configure Outlook for first session using cached mode and subsequent sessions in on-line mode
