python脚本发邮件

(参考：SMPT发送邮件)

SMTP是发送邮件的协议，Python内置对SMTP的支持，可以发送纯文本邮件、HTML邮件以及带附件的邮件。Python对SMTP支持有smtplib和email两个模块，email负责构造邮件，smtplib负责发送邮件。

这里我以qq邮箱为例，先附上代码：

#coding: utf-8  
import smtplib
from email.mime.text import MIMEText
from email.header import Header
from email import encoders
from email.utils import parseaddr, formataddr
from email.Utils import COMMASPACE,formatdate


def _format_addr(s):
    name, addr = parseaddr(s)
    return formataddr(( \
        Header(name, 'utf-8').encode(), \
        addr.encode('utf-8') if isinstance(addr, unicode) else addr))

sender = '******@qq.com'
receiver = '******@qq.com'
subject = 'python email test'
smtpserver = 'smtp.qq.com'
username = '******@qq.com'
password = '*******'

msg = MIMEText('hello, send by Python...', 'plain', 'utf-8')
msg['Date'] = formatdate(localtime=True) 
msg['From'] = _format_addr(u'Python爱好者 <%s>' % sender)
msg['To'] = _format_addr(u'管理员 <%s>' % receiver)
msg['Subject'] = Header(u'来自SMTP的问候……', 'utf-8').encode()

smtp = smtplib.SMTP_SSL(smtpserver,465)
smtp.connect( smtpserver )
smtp.login( username, password )
smtp.sendmail( sender, receiver, msg.as_string() )
smtp.quit()

sender为发件人邮箱，receiver为收件人邮箱。smtpserver填qq邮箱服务器，发送邮件时需要开启POP3/SMTP服务。（设置方法：进入qq邮箱，设置—>账号，找到“POP3/IMAP/SMTP/Exchange/CardDAV/CalDAV服务”模块，开启服务。）

填入username和password后运行，出现如下错误：

Traceback (most recent call last):
  File "C:\Users\Desktop\0619\testemail.py", line 31, in <module>
    smtp.login( username, password )
  File "D:\toolsforwork\Python27\lib\smtplib.py", line 623, in login
    raise SMTPAuthenticationError(code, resp)
smtplib.SMTPAuthenticationError: (535, 'Error: \xc7\xeb\xca\xb9\xd3\xc3\xca\xda\xc8\xa8\xc2\xeb\xb5\xc7\xc2\xbc\xa1\xa3\xcf\xea\xc7\xe9\xc7\xeb\xbf\xb4: http://service.mail.qq.com/cgi-bin/help?subtype=1&&id=28&&no=1001256')
[Finished in 2.1s with exit code 1]

解决办法：点击上面开启POP3/SMTP服务页面的“生成授权码”，按要求操作成功后会得到一个16位的授权码，该授权码即为password。（上述代码中“******”处填入自己对应的信息即可，亲测有效。）

注：

（1）脚本别命名为email.py，否则会出错，具体参考：python 发送邮件及ImportError: No module named mime.text处理

（2）参考的教程中smtp为：smtplib.SMTP(smtp_server, 25)，但我试了出现如下错误：

Traceback (most recent call last):
  File "C:\Users\Desktop\0619\testemail.py", line 30, in <module>
    smtp.connect( smtpserver )
  File "D:\toolsforwork\Python27\lib\smtplib.py", line 318, in connect
    (code, msg) = self.getreply()
  File "D:\toolsforwork\Python27\lib\smtplib.py", line 369, in getreply
    raise SMTPServerDisconnected("Connection unexpectedly closed")
smtplib.SMTPServerDisconnected: Connection unexpectedly closed
[Finished in 60.3s with exit code 1]

改成下面这个就成功了。（QQ邮箱SMTP服务器地址：smtp.qq.com，ssl端口：465）

smtp = smtplib.SMTP_SSL(smtpserver,465)