flask-mail发送QQ邮件代码示例（亲测可行）

from flask import Flask
from flask_mail import Mail, Message
app = Flask(__name__)
app.config.update(
 MAIL_SERVER='smtp.qq.com',
 MAIL_PORT='465',
 MAIL_USE_SSL=True,
 MAIL_USERNAME='你的QQ号',
 MAIL_PASSWORD='邮箱密码'
 )
mail = Mail(app)
@app.route('/')
def index():
 msg = Message(subject="mongo", sender='发送者邮箱', recipients=['接收者邮箱'])
 msg.html='<h1>hello world！</h1>'
 mail.send(msg)
 return "hello_world"
if __name__ == '__main__':
 app.run()