diff --git a/app.py b/app.py
index bc89a37..4729802 100644
--- a/app.py
+++ b/app.py
@@ -157,7 +157,7 @@ def index():
 
 @app.route('/ping')
 def ping():
-    return "Mail Autoconfig Service is running."
+    return "✅ Mail Autoconfig Service is running."
 
 @app.route('/mail/config-v1.1.xml')
 def thunderbird_config():