Using Outlook 2010 on Win 7 Pro 32 bit
ZCO Outlook connector ZimbraConnectorOLK_7.2.0.517_x86
zcs-NETWORK-7.2.0_GA_2669.RHEL6_64.201204100021177


Outlook user has multiple calendars in their account, when adding a meeting, the free busy information for the user only uses Free Busy data from the Main Calendar (Called Calendar)

Is there a setting I am missing?

Is this expected behavior?

Additional Testing shows.
Using the web client, all user calendars are used to calculate the Free Busy data.
Using Thunderbird with Lightning, all user calendars are used to calculate Free Busy data
Using Apple iCal, all user calendars are used to calculate Free Busy data