To add TCP/IP connection documents: In Domino Admin, expand Configuration, expand Messaging and then click Connections. Add a connection, and then:
| 1  | On the Basics tab: | 
| • | Connection type: Local Area Network. | 
| • | Source Server: name of the Domino server (in the Notes / Domino format, e.g. source_Notes_mail_database_server/DOMINODOMAIN). | 
| • | Use the port(s): TCP/IP. | 
| • | Usage priority: Normal. | 
| • | Destination server: the Domino server hosting the QCalCon Domino Server Task (in the Notes / Domino format, e.g. target_Notes_QCalCon_server/DOMINODOMAIN). | 
| • | Destination domain: DOMINODOMAIN of the server running the QCalCon Domino Server Task. | 
| • | Optional network address: IP address of the destination server. | 
| IMPORTANT: Remember that a TCP/IP Connection document is required in both directions. The Basics tab settings must be reversed on the other TCP/IP Connection document to define a connection in the other direction. The net result of this configuration with a Domino mail database server and the QCalCon Domino Server Task running on a separate Domino server is that you will have two TCP/IP Connection documents, with one document pair for each Domino mail database server. | 
| 2  | On the Replication/Routing tab: | 
| • | Replication task: Disabled. | 
| • | Routing task: Mail Routing. | 
| • | Route at once if: 1 messages pending. | 
| 3  | On the Schedule tab: Modify the settings on this tab to meet sending requirements (24 hours). | 
| 4  | Click Save and Close. | 
If you are configuring FBC for a hybrid Microsoft 365: Remember that the FBC for a hybrid M365 is configured only between Notes/Domino and the local on-premises Exchange, while synchronization of the local Exchange to M365 is configured apart from CMN (and documented separately by Microsoft). Configuration of CMN’s FBC for a hybrid M365 is therefore the same as configuring for a local on-premises Exchange—as described here.
CMN’s Free/Busy Connector can facilitate the flow of free/busy information among multiple subdomains supported by both the Exchange and Domino servers. To support this scenario, run the Add-AvailabilityAddressSpace cmdlet on the Exchange server or Microsoft 365 for each Domino SMTP domain supported.
To configure CMN’s FBC Web Server:
The FreeBusyConnector.msi installer automatically checks the environment to verify CMN prerequisites, but you can bypass the prerequisites check by running the installer from the command line and appending ignoreprerequisites=1 to the command before executing.
| • | On the CMN FBC Web Server: Run FreeBusyConnector.msi to install the Autodiscover, Exchange and the Domino FBC Service on the CMN FBC Web Server. | 
| • | On either the same CMN FBC Web Server or a separate CMN Exchange FBC Server: Run FreeBusyConnector.msi to install the CMN Exchange FBC Service. |