I'm not quite sure what you are asking here. Would it be possible for you to tell us more about what you need to do? Do you mean what is commonly called an "autoresponder" - an email address that will automatically send a specified reply to anyone who sends it an email? Or do you mean something else? I'm particularly puzzled by your mention of JSP, here, as my understanding of autoresponder behaviour is entirely email based, with no HTTP or web pages involved.