SMTPServerDisconnected problem

My google email sending app (that ever get data from the screen). On the development server, I specify the smtp config (host, port, user, password) when starting the server. then i run my application in this form after i submitted data showing error like

**Traceback (most recent call last):
  File "C:\Program Files\Google\google_appengine\google\appengine\ext\webapp\__init__.py", line 500, in __call__
    handler.post(*groups)
  File "C:\Documents and Settings\desk\Desktop\apps\temp\main.py", line 139, in post
    """)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\mail.py", line 205, in send_mail
    message.send(make_sync_call)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\mail.py", line 474, in send
    make_sync_call('mail', self._API_CALL, message, response)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 68, in MakeSyncCall
    apiproxy.MakeSyncCall(service, call, request, response)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 240, in MakeSyncCall
    stub.MakeSyncCall(service, call, request, response)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\apiproxy_stub.py", line 80, in MakeSyncCall
    method(request, response)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\mail_stub.py", line 203, in _Send
    self._SendSMTP(mime_message, smtp_lib)
  File "C:\Program Files\Google\google_appengine\google\appengine\api\mail_stub.py", line 139, in _SendSMTP
    smtp.quit()
  File "C:\Python26\lib\smtplib.py", line 730, in quit
    res = self.docmd("quit")
  File "C:\Python26\lib\smtplib.py", line 362, in docmd
    self.putcmd(cmd,args)
  File "C:\Python26\lib\smtplib.py", line 318, in putcmd
    self.send(str)
  File "C:\Python26\lib\smtplib.py", line 310, in send
    raise SMTPServerDisconnected('please run connect() first')
SMTPServerDisconnected: please run connect() first**

      

        
        
        
      

    

after telling that SMTPServerDisconnected, first run connect () with the following code i am using

mail.send_mail (sender = " abc@xyz.com ", to = " def@xyz.com ", subject = "Test Message", Body = "" Dear Albert:

          Your example.com account has been approved.  You can now visit
          http://www.example.com/ and sign in using your Google Account to
          access new features.

          Please let us know if you have any questions.

          The example.com Team
          """)

      

        
        
        
      

    

please tell me what is wrong in this code. I am new to Python and Google Apps.

I am waiting for an answer Thanks in advance