用flask_mail通过qq邮箱发送邮件
qq邮箱的授权码获取方式，登录qq邮箱web版，左上角点击设置-->账户-->POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务，看到这串文字的时候你就看到授权码的获取方式了
# -*- coding: utf-8 -*-
from flask import Flask, request
from flask_script import Manager, Shell
from flask_mail import Mail, Message
from threading import Thread
app = Flask(__name__)
app.config['MAIL_DEBUG'] = True # 开启debug，便于调试看信息
app.config['MAIL_SUPPRESS_SEND'] = False # 发送邮件，为True则不发送
app.config['MAIL_SERVER'] = 'smtp.qq.com' # 邮箱服务器
app.config['MAIL_PORT'] = 465 # 端口
app.config['MAIL_USE_SSL'] = True # 重要，qq邮箱需要使用SSL
app.config['MAIL_USE_TLS'] = False # 不需要使用TLS
app.config['MAIL_USERNAME'] = '776948741@qq.com' # 填邮箱
app.config['MAIL_PASSWORD'] = 'xxxxxxxxxx' # 填授权码
app.config['MAIL_DEFAULT_SENDER'] = '776948741@qq.com' # 填邮箱，默认发送者
manager = Manager(app)
mail = Mail(app)
# 异步发送邮件
def send_async_email(app, msg):
with app.app_context():
mail.send(msg)
@app.route('/')
def index():
msg = Message(subject='Hello World',
sender="776948741@qq.com", # 需要使用默认发送者则不用填
recipients=['776948741@qq.com'])
# 邮件内容会以文本和html两种格式呈现，而你能看到哪种格式取决于你的邮件客户端。
msg.body = 'sended by flask-email'
msg.html = '<b>my test mail<b>'
thread = Thread(target=send_async_email, args=[app, msg])
thread.start()
return '<h1>邮件发送成功</h1>'
if __name__ == '__main__':
manager.run()
