Fixed program crash if OS doesn't support baloon notification

mail-notifier.py

@@ -440,10 +440,14 @@ def mail_check():
     # check was successfull, lastCheckCount is updating
     window.lastCheckCount = mail_count
 def notify(message):
+    try:
         if settings.value("Notify"):
             n = notify2.Notification(programTitle, message)
             n.show()
         return
+    except:
+        print(message)
+        pass