diff --git a/changelog.d/18018.bugfix b/changelog.d/18018.bugfix
new file mode 100644
index 0000000000..019ee45d1f
--- /dev/null
+++ b/changelog.d/18018.bugfix
@@ -0,0 +1 @@
+Don't apply ratelimiting on the sending of delayed events by the server.
diff --git a/synapse/handlers/delayed_events.py b/synapse/handlers/delayed_events.py
index 80cb1cec9b..ea8a4396e6 100644
--- a/synapse/handlers/delayed_events.py
+++ b/synapse/handlers/delayed_events.py
@@ -509,6 +509,7 @@ class DelayedEventsHandler:
                     requester,
                     event_dict,
                     txn_id=txn_id,
+                    ratelimit=False,
                 )
                 event_id = sent_event.event_id
         except ShadowBanError: