Thank you for helping me to answer questions.
I found my problem. I have thought that development web server is on the
server.Actually it is on the local.
Also,thank you for your suggestions.I will consider them.
在 2012年9月20日星期四UTC+8上午2时55分40秒，barryhunter写道：
On Wed, Sep 19, 2012 at 7:49 PM,
Hello ! I have some problems about sending email on GAE.
The book Programming Google App Engine tells that:
To configure the Python development server to use an SMTP server to send
email, use the --smtp_host=... (with optional --smtp_port=...),
--smtp_user=..., and --smtp_password=...
