Forum Discussion
Free / Busy Build 7870.2020
Ryan Steeno wrote:We have been struggling with this for quite some time as well. On premises mail users were not able ot view free/busy information for a user who has their mailbox in EXO. After opening a ticket the MS support, it turned out our Exchange 2010 servers did not have the DigiCert root required for outlook.office365.com. After deploying this root cert to our Exchange on premises, we are now able to view free/busy!
Can you elaborate a bit on your fix? I am worried I have this problem as well.
Yeah sure, after the update was applied it modified primary calendar permission settings. Read permissions were set to "None."
Go to Calendar and right click on your primary calendar. Select Properites > Permissions. Make sure the Read permission is set to "Free/Busy time."