python實現郵件發送功能

# 帶附件的郵件
import smtplib
from email.mime.multipart import MIMEMultipart # python2.4及之前版本該模塊不是這樣調用的，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 = '[e-mail]'#發件人地址
receiver = ['[e-mail]','[e-mail]']#收件人地址
smtpserver = 'smtp.qq.com'#郵件服務器
username = '123'#用戶名
password = 'xxx'#密碼  # qq郵箱打開，點擊賬戶，中間偏下位置打開smtp服務器時會自動生成
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'] = '反欺詐數據報' #郵件標題，這里我把標題設成了你所發的附件名
    msgText = MIMEText('%s'%msg,'html','utf-8')#你所發的文字信息將以html形式呈現
    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:#持續嘗試發送，直到發送成功
        try:
            smtp.sendmail(sender, receiver, msgRoot.as_string())#發送郵件
            break
        except:
            try:
                smtp.connect(smtpserver)#連接至郵件服務器
                smtp.login(username, password)#登錄郵件服務器
            except:
                print "failed to login to smtp server"#登錄失敗

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