python SMTP发送邮件

 这是个人在项目中抽取的代码，自己写的utils的通用模块，使用的框架是tronado，包括了SMTP方式发送邮件，如有特别需要（POP）可以联系我或者自己扩展，刚学python不久，仅供参考，例子如下。

import smtplib

from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

def send_mail(auth,to_list,sub,content,file_name):
    print file_name
    mail_user, mail_pass, mail_host, mail_postfix = auth
    me=mail_user+"<"+mail_user+"@"+mail_postfix+">"
    #Create Mail
    msg = MIMEMultipart('alternative')
    msgText = MIMEText(content,'html', 'utf-8')
    msg.attach(msgText)
    msg['Subject'] = sub
    msg['From'] = me
    msg['To'] = ";".join(to_list)
    if file_name != None:
        att = MIMEText(open(file_name, 'rb').read(), 'base64', 'gb2312')
        att["Content-Type"] = 'application/octet-stream'
        att["Content-Disposition"] = 'attachment; filename="%s"'%file_name.split('/')[-1].strip()
        msg.attach(att) #attachment
        #Send it!
    s = smtplib.SMTP()
    s.connect(mail_host)
    try:
        s.login(mail_user,mail_pass)
        print 'login email server'
    except Exception, e:
        pass
    s.sendmail(me,to_list,msg.as_string())
    s.close()
    print 'success！'