Python 发送 email 的两种方式

Python发送email的两种方式，分别为使用登录邮件服务器、调用sendmail命令来发送三种方法

Python发送email比较简单，可以通过登录邮件服务来发送，linux下也可以使用调用sendmail命令来发送，还可以使用本地或者是远程的smtp服务来发送邮件，不管是单个，群发，还是抄送都比较容易实现。本米扑博客先介绍几个最简单的发送邮件方式记录下，像html邮件，附件等也是支持的，需要时查文档即可。

一、登录邮件服务器

通过smtp登录第三方smtp邮箱发送邮件，支持 25 和 465端口

vim python_email_1.py

#!/usr/bin/env python
# -*- coding:utf-8 -*-
#
# author: mimvp.com
# 2015.10.05

import smtplib
from email.mime.text import MIMEText  

smtpHost = 'smtp.exmail.qq.com'
sender = 'robot@mimvp.com'
password = "mimvp-password"
receiver = 'yanggang@mimvp.com'

content = 'hello mimvp.com'
msg = MIMEText(content)  

msg['Subject'] = 'email-subject'
msg['From'] = sender
msg['To'] = receiver  

## smtp port 25
smtpServer = smtplib.SMTP(smtpHost, 25)         # SMTP
smtpServer.login(sender, password)
smtpServer.sendmail(sender, receiver, msg.as_string())
smtpServer.quit()
print 'send success by port 25' 

## smtp ssl port 465
smtpServer = smtplib.SMTP_SSL(smtpHost, 465)    # SMTP_SSL
smtpServer.login(sender, password)
smtpServer.sendmail(sender, receiver, msg.as_string())
smtpServer.quit()
print 'send success by port 465'

执行命令：

$ python python_email_1.py 
send success by port 25
send success by port 465

二、调用sendmail命令

调用本机linux自身sendmail服务发送邮件，不需要启动sendmail后台进程，不需要发送者登录，邮件发送者可以是任意名字，没有限制。

特别注意：sendmail 命令发送邮件，默认用25端口号，由于阿里云、腾讯云等封禁了25端口号，因此本示例需在开通25端口机器上测试

vim python_email_3.py

#!/usr/bin/env python
# -*- coding:utf-8 -*-
#
# author: mimvp.com
# 2015.10.05

from email.mime.text import MIMEText
from subprocess import Popen, PIPE
import commands

import sys
reload(sys)
sys.setdefaultencoding('utf-8')

def send_mail(sender, recevier, subject, html_content):
        msg = MIMEText(html_content, 'html', 'utf-8')
        msg["From"] = sender
        msg["To"] = recevier
        msg["Subject"] = subject
        p = Popen(["/usr/sbin/sendmail", "-t"], stdin=PIPE)
        p.communicate(msg.as_string())

sender = 'robot@mimvp.com'
recevier = 'yanggang@mimvp.com'
subject = 'sendmail-subject'
html_content = 'hello mimvp.com'
send_mail(sender, recevier, subject, html_content)

执行命令：

python python_email_3.py