app.config['MAIL_SERVER'] = 'smtp.qq.com'
app.config['MAIL_PORT'] = 465
app.config['MAIL_USE_TLS'] = True
app.config['MAIL_USERNAME'] = os.environ.get('MAIL_USERNAME')
app.config['MAIL_PASSWORD'] = os.environ.get('MAIL_PASSWORD')

在环境中配置（所在平台为windows，假设我邮箱为6666@qq.com, 密码也为6666）：

set MAIL_USERNAME = 6666 #only an example, int type
set MAIL_PASSWORD = 6666 #int type

然后进入python的shell输入

from flask.ext.mail import Message
from hello import mail #hello就是我的model（.py文件）
msg = Message('subject', sender='6666@qq.com', recipients=['6666@qq.com'])
msg.body = 'body content'
msg.html = '<h1>Why it doesn't work?</h1> body'
with app.app_context():

mail.send(msg)

运行后一直无反应，没结果出现。将mail_server换成mx1.qq.com后直接出现TimeoutError,10060

感觉应该是qq邮箱的配置方面出错，但具体找不出在哪里。求教原因，谢谢！