diff --git a/throttling/broadcast.cfg b/throttling/broadcast.cfg
new file mode 100644
index 0000000..dda6315
--- /dev/null
+++ b/throttling/broadcast.cfg
@@ -0,0 +1,12 @@
+# The same message being sent to multiple recipients may not be a problem per se,
+# but it may be worth logging.
+
+THROTTLE_IN=broadcast
+
+THROTTLE broadcast <
+KEYS=MESSAGE
+TIMESPAN=1M
+LIMIT=256
+MODE=LOG
+>
+