Normally if the process run by a command in a pipe transport exits on a signal,
a bounce message is sent. If &%freeze_signal%& is set, the message will be
frozen in Exim's queue instead.
Normally if the process run by a command in a pipe transport exits on a signal,
a bounce message is sent. If &%freeze_signal%& is set, the message will be
frozen in Exim's queue instead.