Transmitting data sets and messages with security labels

If your installation uses security labels and security checking, any data sets or messages you transmit have a security label associated with them. The security label you are logged on with when you issue the TRANSMIT command is the one associated with the data. In order for receivers to view the data set or message, they must be logged on with a security label that is equal to or greater than the one associated with the data.

Some considerations for transmitting and receiving data sets and messages with security labels are:

Receivers can only receive data sets and messages that they are authorized to receive based on the security label they are logged on with.
To receive data sets and messages with a greater security label, receivers can log on with a greater security label if their TSO/E user IDs are authorized to do so. They can then use the RECEIVE command to view the messages and data sets.
If the receivers cannot log on with a security label that allows them to view the transmitted data (data set or message), the system deletes the data, unless your installation uses a JES installation exit to take some other action.
The receivers do not receive a notice that they have data sets or messages to receive if the data was transmitted with a greater security label than the receivers are logged on with.