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Coexistence Manager for Notes 3.8.1 - FBC Scenarios Guide

About the CMN Documentation Introduction On-premises Exchange or hybrid O365 using shared (single) namespace On-premises Exchange or hybrid O365 using separate namespaces Non-hybrid O365 using shared (single) namespace Non-hybrid O365 using separate namespaces Appendix: FBC Planning Worksheet Appendix: Troubleshooting the FBC

2-5: Set up the server connection document

This Connection Document is used both for the Free/Busy Connector and for mail-routing.

1
On the Basics tab: Set the Connection type to SMTP, and the Source server is the server where the F/B request will originate.
2
To accommodate multiple mail servers, set up just one Server Connection document with the Source server set so that any of those servers can use this same document:
Source Domain (field appears in some but not all Domino versions): The Domino domain.
Connect via: Set to Direct connection.
Destination server: Can be any arbitrary name you want to assign.
Destination domain: Should be set to CMNOUT, to match the Domain name in the Foreign SMTP Document (set up in the preceding section). You can use some other value, but the Destination domain value here must match the Foreign SMTP Domain name. Note this is a "virtual domain," not a real domain. It doesn't really exist or go anywhere, but we use these fields to get Domino to match documents and route mail the way we want.
3
Set the SMTP MTA relay host to the IP address of the CMN Mail Connector.
4
On the Replication/Routing tab (for the same connection document): The Replication task should be Disabled, and the Routing task should be set to Mail Routing or SMTP Mail Routing, depending on the setup of your environment.
5
On the Schedule tab (for the same connection document): Set this connection document to be enabled 24 hours per day.

2-6: Add TCP/IP connection documents

In some environments, free/busy lookups may also require that you add TCP/IP Connection documents in both directions between the Domino servers housing mail databases (mailbox servers) and the Domino server running the QCalCon Domino Server Task.

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).
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:
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.

Step 3: Configure the Exchange side

Configure domains, permissions and other server parameters and attributes so they will be able to work with CMN’s Free/Busy Connector.

If you are configuring FBC for a hybrid Office 365: Remember that the FBC for a hybrid O365 is configured only between Notes/Domino and the local on-premises Exchange, while synchronization of the local Exchange to O365 is configured apart from CMN (and documented separately by Microsoft). Configuration of CMN’s FBC for a hybrid O365 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 Office 365 for each Domino SMTP domain supported.

Configuring on-premises Exchange 2003 or 2007 to use Exchange public folders

Older versions of Exchange (e.g., Exchange 2000 and 2003) stored free/busy information in system public folders. Beginning with Exchange 2007, F/B information is stored by default in object mailboxes, although Exchange 2007 also permits storing F/B information in public folders, so this later version of Exchange can be backward-compatible with Outlook 2003 clients.

CMN's Free/Busy Connector (FBC) was originally designed to function in a direct, immediate query-and-response model. CMN FBC subcomponents facilitate processes by which an end-user client in system "A" asks system "B" for the free/busy info for one of its users, and system "B" replies with the requested info. This model was designed to facilitate F/B coexistence between Domino and Outlook 2007 or later, but the same approach does not work for Outlook version 2003, because that version can only obtain F/B information from external systems and provide its own F/B info to external systems if the information is relayed through Exchange public folders.

CMN supports a public-folders option too, and it requires an alternate configuration with some different subcomponents. This section describes the two options to implement CMN's Free/Busy Connector to support Outlook 2003 clients, with either Exchange 2003 or Exchange 2007 servers.

The F/B Connector’s public-folders model for Outlook 2003 clients is not a direct query-and-response system when Outlook users seek Notes users’ F/B info. Exchange public folders instead function like a holding tank that must be regularly refreshed with updated data, so at any given moment the public folders F/B info for Notes users will lag some interval (typically several minutes) behind the true current state of Notes users’ F/B status. The polling interval is configurable, so the latency period can be minimized by a shorter interval, although an increased polling frequency places greater demands on system resources.

The public-folders FBC model does, however, support a direct query-response process in the other direction—when Notes users seek Outlook users’ F/B info. The Exchange public folders serve as a repository for F/B info for both systems’ users, but the information for Outlook users is very nearly current, almost continuously refreshed (internally, by Exchange), whereas the F/B info for Notes users must be explicitly obtained and relayed by CMN's F/B Connector, at less frequent intervals.

The F/B Connector process overview in the FBC section of the CMN User Guide lists the five FBC subcomponents used in typical configurations (in environments without Outlook 2003 clients). With public folders, however, the configuration must include one or both of these additional F/B Connector subcomponents:

CMN Public Folder Writer Service: Required in any scenario with Outlook 2003 clients, but unnecessary for any other Outlook versions. This service contacts Domino (via CMN’s Domino FBC Service) at specified regular intervals to get F/B information from Domino, and then writes that information to the Exchange public folders. The service also communicates with Active Directory to get a current list of Domino contacts in the Exchange system, communicating with Exchange via MAPI.
CMN Public Folder Reader Service: Accepts a F/B query originating from Domino and relays it to the Exchange F/B public folders. It is required where Outlook 2003 clients use Exchange 2003 public folders, but is optional if Outlook 2003 clients use Exchange 2007 or later public folders. (Exchange 2007 can instead relay a query to its public folders via CMN’s Exchange FBC Service and the Microsoft Autodiscover and EWS web services.) The CMN Public Folder Reader Service communicates with Exchange via the WebDAV (Web Distributed Authoring and Versioning) component of IIS.

CMN’s Free/Busy Connector offers two options to configure F/B coexistence with Exchange public folders to support Outlook 2003 clients:

Option 1: Uses CMN’s Public Folder Reader Service to relay Notes F/B queries from CMN’s QCalCon task (on the Domino server) to Exchange public folders, and relay the F/B info back to QCalCon.

Supports:
Exchange 2003
or Exchange 2007

Option 2: Uses CMN’s Exchange Free/Busy Connector Service to relay Notes F/B queries from CMN’s QCalCon task on the Domino server to Microsoft’s Autodiscover and EWS on the Exchange server, and relay the F/B info back from MS Autodiscover and EWS to QCalCon. (Microsoft’s Autodiscover and EWS in turn relay Notes F/B queries and info to and from Exchange public folders.)

Supports:
Exchange 2007 only

Note that Option 1 is required if you need to support Outlook 2003 clients connected to an Exchange 2003 server. For an Exchange 2007 server, however, either option will work. These procedures include pertinent notes for configuring either option of the F/B Connector with Exchange public folders.

Option 1 uses CMN’s Public Folder Reader Service to relay Notes F/B queries from CMN’s QCalCon task (on the Domino server) to Exchange public folders, and relay the F/B info back to QCalCon.

Outlook users’ queries for Domino F/B info are routed directly to Exchange public folders (internally within the Exchange environment), and the public folders transmit the F/B info directly to the Outlook users. (No CMN components are used for that query-reply portion of the F/B functionality.) But CMN’s Public Folder Writer Service is used to get Notes users’ current F/B info from Domino and, at regular intervals, refresh the corresponding F/B info held in the Exchange public folders. The Public Folder Writer Service also communicates with Active Directory to get and maintain a current list of Domino contacts in the Exchange system.

Option 2 is one option for an Exchange 2007 environment (Option 1 also works with Exchange 2007), but is not an option with Exchange 2003. These procedures include pertinent notes for configuring either option of the F/B Connector with Exchange public folders.

This configuration uses CMN’s Exchange Free/Busy Connector Service to relay Notes F/B queries from CMN’s QCalCon task on the Domino server to Microsoft’s Autodiscover and EWS on the Exchange server, and relay the F/B info back from MS Autodiscover and EWS to QCalCon. (Microsoft’s Autodiscover and EWS in turn relay Notes F/B queries to Exchange public folders, and receive the public folders’ F/B info.)

Just as in Option 1, CMN’s Public Folder Writer Service is used to get Notes users’ current F/B info from Domino and, at regular intervals, refresh the corresponding F/B info held in the Exchange public folders. The Public Folder Writer Service also communicates with Active Directory to get and maintain a current list of Domino contacts in the Exchange system. And Outlook users’ queries for Domino F/B info are routed directly to Exchange public folders (internally within the Exchange environment), while the public folders transmit the F/B info directly to the Outlook users—again the same as in Option 1.

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