delete entry in database if error during mail sending occured

input/views.py

@@ -192,10 +192,13 @@ class ExternView(CookieWizardView):
                 IF_EMAIL,
                 [IF_EMAIL],
                 fail_silently=False)
+            # raise SMTPException("testing pupose only")
 
         except BadHeaderError:
+            modell.delete()
             return HttpResponse('Invalid header found. Data not saved!')
         except SMTPException:
+            modell.delete()
             return HttpResponse('Error in sending mails (propably wrong adress?). Data not saved!')