Office365 & Exchange 2010 SP3 Hybrid Free/Busy
Posted on 2013-10-31
We have a Hybrid environment set up for Office365 (Exchange 2003 cloud) & Exchange 2010 SP3 (On-Premise).
Free/Busy info isn't working across the environments, and I'm convinced it's because our On-Premise Exchange doesn't have Outlook Anywhere enabled, basically due to Security saying all external email access must to tunnel thru the corporate VPN.
So with that being said, I know that probably 'should' go back and enable Outlook Anywhere on all my Exchange servers, but that would cost tens of thousands of dollars just in new SSL certificates alone, all SAN Certs, where were trying to decommission the on-premise servers sooner rather than later, so spending more on them isn't preferred.
I heard there may be a way to get this done by creating a new Hub Transport configuration and Email Address Policy to allow communication between the two environments?