diff --git a/zproject/computed_settings.py b/zproject/computed_settings.py
index 5b7814f2ab..d9f7e28030 100644
--- a/zproject/computed_settings.py
+++ b/zproject/computed_settings.py
@@ -394,7 +394,7 @@ RATE_LIMITING_RULES = {
         (86400, 5),  # 5 per day
     ],
     "sends_email_by_ip": [
-        (1800, 5),
+        (86400, 5),
     ],
 }