python发送邮件

今天在网上找到一个比较轻巧的python发送邮件的程序:

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#导入smtplib和MIMEText
import smtplib
from email.mime.text import MIMEText
#############
#要发给谁，这里发给2个人
mailto_list=["[email protected]"]
#####################
#设置服务器，用户名、口令以及邮箱的后缀
mail_host="smtp.163.com"
mail_user="happyssd4"
mail_pass="myhappyssd4"
mail_postfix="163.com"
######################
def send_mail(to_list,sub,content):
    me=mail_user+"<"+mail_user+"@"+mail_postfix+">"
    msg = MIMEText(content)
    msg['Subject'] = sub
    msg['From'] = me
    msg['To'] = ";".join(to_list)
    try:
        s = smtplib.SMTP()
        s.connect(mail_host)
        s.login(mail_user,mail_pass)
        s.sendmail(me, to_list, msg.as_string())
        s.close()
        return True
    except Exception, e:
        print str(e)
        return False
if __name__ == '__main__':
    if send_mail(mailto_list,"subject","content"):
        print "发送成功"
    else:
        print "发送失败"

不知道为什么126邮箱没有成功,我用的163邮箱成功了