Enabling multiple concurrent transfer threads between Domino domains

To transfer a message, the Router assigns a transfer thread to a message in its transfer queue. When Notes routing is used, the transfer thread moves the message across the network by copying it from the queue and writing it to the MAIL.BOX database on the destination server by means of a Notes remote procedure call. Each transfer thread processes a single message for a single destination only. If a message has multiple recipients at that destination, the thread deposits a single message addressed to all of them. To send additional messages or send the same message to additional destinations, the Router must activate additional transfer threads.

When the transfer queue has many messages for a given destination, the messages may be able to be transferred more efficiently if the server can create multiple transfer threads to that destination. However, for multiple transfer threads to improve efficiency there must be ample bandwidth on the connection between the servers.

For Notes routing, connections that rely on Connection documents, including connections to remote domain servers, are typically slower than local domain connections; so, by default, Domino does not allow multiple concurrent transfer threads to destinations that require a Connection document. To ensure that message transfer is not adversely affected, alter only the default behavior servers that have high-bandwidth connections to other Domino domains.