In Earlier versions of Exchange, If we configure the Conference Room to accept the External meeting request by enabling –processexternalmeetingmessages $true , External meeting requests will be processed and Sender would receive Meeting Accepted message.
However in Exchange 2010 , this external meeting request will not work , due to security reasons. To resolve this, we need to do few tweaking’s on this …
- Create the Contact for External Sender in GAL
- Create Hub Transport Rule as shown below .
By this, External Meeting request will be successfully accepted by the conference room.