python实现邮件发送功能

# 带附件的邮件
import smtplib
from email.mime.multipart import MIMEMultipart # python2.4及之前版本该模块不是这样调用的，而是email.MIMEMultipart.MIMEMultipart(),下同
from email.mime.text import MIMEText
from email.utils import parseaddr,formataddr
from email.header import Header

sender = '123@qq.com'#发件人地址
receiver = ['xx@dd.com','123@qq.com']#收件人地址
smtpserver = 'smtp.qq.com'#邮件服务器
username = '123'#用户名
password = 'xxx'#密码  # qq邮箱打开，点击账户，中间偏下位置打开smtp服务器时会自动生成
smtp = smtplib.SMTP()

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))

def send_email(msg,file_name):
msgRoot = MIMEMultipart('related')
# msgRoot['To'] = _format_addr(u'%s' % receiver)
msgRoot['to'] = '%s' % receiver
msgRoot['Subject'] = '反欺诈数据报' #邮件标题，这里我把标题设成了你所发的附件名
msgText = MIMEText('%s'%msg,'html','utf-8')#你所发的文字信息将以html形式呈现
msgRoot.attach(msgText)
for fs in file_name.split(','):
att = MIMEText(open(r'E:\%s'%fs, 'rb').read(), 'base64', 'utf-8')#添加附件
att["Content-Type"] = 'application/octet-stream'
att["Content-Disposition"] = 'attachment; filename="%s"'%fs
msgRoot.attach(att)
while 1:#持续尝试发送，直到发送成功
try:
smtp.sendmail(sender, receiver, msgRoot.as_string())#发送邮件
break
except:
try:
smtp.connect(smtpserver)#连接至邮件服务器
smtp.login(username, password)#登录邮件服务器
except:
print "failed to login to smtp server"#登录失败

if __name__ == "__main__":
MSG="hello python "#要发送的文字
FILE="cust_id.csv,test.csv"#要发送的文件
send_email(MSG,FILE)