= mail =
 * http://libgmail.sourceforge.net/
 * GAE：http://code.google.com/intl/zh-TW/appengine/docs/python/mail/overview.html
 * http://codecomments.wordpress.com/2008/01/04/python-gmail-smtp-example/
 * http://www.example-code.com/python/python-gmail.asp
 * http://www.velocityreviews.com/forums/t346200-smtplib-and-tls.html
 * http://djkaos.wordpress.com/2009/04/08/python-gmail-smtp-send-email-script/