diff --git a/feedback-ltworf/app.yaml b/feedback-ltworf/app.yaml
index 475cb68..9dd47da 100644
--- a/feedback-ltworf/app.yaml
+++ b/feedback-ltworf/app.yaml
@@ -1,7 +1,7 @@
 application: feedback-ltworf
-version: 1
+version: 4
 runtime: python27
-api_version: 3
+api_version: 1
 threadsafe: true
 
 handlers:
diff --git a/feedback-ltworf/feedback.py b/feedback-ltworf/feedback.py
index b04c96a..a3db9e9 100644
--- a/feedback-ltworf/feedback.py
+++ b/feedback-ltworf/feedback.py
@@ -28,7 +28,7 @@ def mail_sender(request, *args, **kwargs):
     if kwargs["id"] == "relational":
         from google.appengine.api import mail
 
-        mail.send_mail(sender="Feedback service <tiposchi@tiscali.it>",
+        mail.send_mail(sender="Feedback service <noreply@feedback-ltworf.appspotmail.com>",
             to="tiposchi@tiscali.it",
               subject="Feedback from %s" % kwargs["id"],
               body=message)