Unable to retrieve free/busy with error: Attendee's server couldn't be found. Error code: 5008
What led up to this error is we found a misconfig where somebody had set "Authenticated Users" "Full Control" in ADSIEdit at the ExchangeOrg level. After removing this permission Free/Busy has not worked. I've tried to find any documentation that details the "default" of the Free/Busy public folder but have come up empty handed.