python發送郵件

今天在網上找到一個比較輕巧的python發送郵件的程式:

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#匯入smtplib和MIMEText
import smtplib
from email.mime.text import MIMEText
#############
#要發給誰，這裡發給2個人
mailto_list=["731987620@qq.com"]
#####################
#設定伺服器，使用者名稱、口令以及郵箱的尾碼
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 "發送成功"
    else:
        print "發送失敗"

不知道為什麼126郵箱沒有成功,我用的163郵箱成功了