Send bridge state and message checkpoints

example-config.yaml

@@ -75,6 +75,8 @@ bridge:
 
     portal_message_buffer: 128
 
+    # Should the bridge send a read receipt from the bridge bot when a message has been sent to Discord?
+    delivery_receipts: false
     # Should the bridge sync with double puppeting to receive EDUs that aren't normally sent to appservices.
     sync_with_custom_puppets: true
     # Should the bridge update the m.direct account data event when double puppeting is enabled.