1
MAIL_SERVER localhost 电子邮件服务器的主机名或IP 地址
MAIL_PORT 25 电子邮件服务器的端口
MAIL_USE_TLS False 启用传输层安全（Transport Layer Security，TLS）协议
MAIL_USE_SSL False 启用安全套接层（Secure Sockets Layer，SSL）协议
MAIL_USERNAME None 邮件账户的用户名
MAIL_PASSWORD None 邮件账户的密码

2
import os

...

app.config['MAIL_SERVER'] = 'smtp.googlemail.com'
app.config['MAIL_PORT'] = 587
app.config['MAIL_USE_TLS'] = True
app.config['MAIL_USERNAME'] = os.environ.get('MAIL_USERNAME')
app.config['MAIL_PASSWORD'] = os.environ.get('MAIL_PASSWORD')

3 hello.py：初始化Flask-Mail
from flask.ext.mail import Mail
mail = Mail(app)

4
保存电子邮件服务器用户名和密码的两个环境变量要在环境中定义。如果你在Linux 或
Mac OS X 中使用bash，那么可以按照下面的方式设定这两个变量：
(venv) export MAIL_PASSWORD=<Gmail password>
微软Windows 用户可按照下面的方式设定环境变量：
(venv) set MAIL_PASSWORD=<Gmail password>

除了前面提到的环境变量MAIL_USERNAME 和MAIL_PASSWORD 之外，这个版本的程序还需要使
用环境变量FLASKY_ADMIN。Linux 和Mac OS X 用户可使用下面的命令添加：
(venv) set FLASKY_ADMIN=<Gmail username>

5
hello.py：电子邮件支持
from flask.ext.mail import Message
app.config['FLASKY_MAIL_SUBJECT_PREFIX'] = '[Flasky]'
app.config['FLASKY_MAIL_SENDER'] = 'Flasky Admin flasky@example.com'
def send_email(to, subject, template, **kwargs):
msg = Message(app.config['FLASKY_MAIL_SUBJECT_PREFIX'] + subject,
sender=app.config['FLASKY_MAIL_SENDER'], recipients=[to])
msg.body = render_template(template + '.txt', **kwargs)
msg.html = render_template(template + '.html', **kwargs)
mail.send(msg)

6

image.png

image.png

7
hello.py：异步发送电子邮件
from threading import Thread
def send_async_email(app, msg):
with app.app_context():
mail.send(msg)
def send_email(to, subject, template, **kwargs):
msg = Message(app.config['FLASKY_MAIL_SUBJECT_PREFIX']+subject,sender=app.config['FLASKY_MAIL_SENDER'], recipients=[to])
msg.body = render_template(template + '.txt', **kwargs)
msg.html = render_template(template + '.html', **kwargs)
thr = Thread(target=send_async_email, args=[app, msg])
thr.start()
return thr