How to Configure an MSMQ Send Handler
Use the following procedure to change the global variables for an MSMQ send handler.
Each host can have only one send handler associated with it.
To change global variables for an MSMQ send handler by using the BizTalk Server Administration console
In the BizTalk Server Administration console, expand BizTalk Server Administration, expand BizTalk Group, expand Platform Settings, and then expand Adapters.
In the expanded adapter list, click MSMQ, in the right pane, right-click the send handler that you want to configure, and then click Properties.
In the Adapter Handler Properties dialog box, on the General tab, in the Host Name list, select the host with which the send handler will be associated, and then click Properties.
In the MSMQ Transport Properties dialog box, enter a value for Batch Size.
The MSMQ send handler will send messages to destination queues using the specified Batch Size parameter. The default Batch Size value is 5.
Click OK and click OK again to close the Adapter Handler Properties dialog box.