Confirmation of Sending Host Based on Transfer Group ID
When receiving a Receive file in the Send and Receive systems, HULFT can check whether the host on the sending side is registered in the specified Transfer Group ID in the Receive Management Information or not. As a result, HULFT can block the sending of the intended file from the unintended hosts. This function is called transfer group check.
Refer to Receiving from an authorized host (using Transfer Group ID) for details of the Transfer Group ID and the necessary settings to use the Transfer Group Check function.

Figure 2.50 Transfer Group Check Function
In the example shown in above figure, HULFT refuses the file transfer from the host 'HOST09' that is not registered in the Transfer Group ID 'GROUPA' of the Transfer Group Information specified in the Receive Management Information.