diff --git a/Elwig/Windows/MailWindow.xaml.cs b/Elwig/Windows/MailWindow.xaml.cs
index f5f67c9..f67c817 100644
--- a/Elwig/Windows/MailWindow.xaml.cs
+++ b/Elwig/Windows/MailWindow.xaml.cs
@@ -518,6 +518,8 @@ namespace Elwig.Windows {
                 }
             } catch (Exception exc) {
                 MessageBox.Show(exc.Message, "Fehler", MessageBoxButton.OK, MessageBoxImage.Error);
+                GenerateButton.IsEnabled = true;
+                Mouse.OverrideCursor = null;
                 return;
             }
             if (email.Count > 0) {