I am complete novice to Postfix, just set up default Postfix for Ubuntu, tested it through telnet and it sent mail ok, but when I try to send mail through django (host='localhost', port='25', user='', password=''), I just get
SMTPException: SMTP AUTH extension not supported by server.
Here is my main.cf: https://gist.github.com/3348411
Could you please suggest, what I need to add to set up minimal working smtp just for sending email?